taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
A2311D4D9F1EE32E04E7FB2DFCA3289A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228087/files/figure.png	http://doi.org/10.5281/zenodo.5228087	FIGURE 3. Solemya (Petrasma) cf. woodwardiana Leckenby, 1859. (A–B) Lateral view of right valve and dorsal view of articulated specimen with shell preserved. (C–D) Lateral view of left vavle internal mould. Note weak anterior adductor muscle scar and very weak radial ornament. (E) Lateral view of right valve internal mould with shell partially preserved. Note strong radial ornament on the shell, weak on the mould, and posterior adductor muscle scar with buttress supporting the anterior side. (F–G) Lateral view of left vavle internal mould with some shell preserved in dorsal and anterior margins. Note posterior adductor muscle scar with buttress supporting its anterior side and dorsally bound by a chondrophore and weak growth lines on the posterior shell margin. (H–I) Silicone rubber cast of an internal mould showing shape of posterior adductor muscle scar and its relation to chondrophore and buttress. Note posterior adductor muscle scar surrounding the dorsal side of chondrophore and passing above the posterior end of the chondrophore. (J–K, M) Dorsal views of articulated internal moulds showing chondrophore and anterior adductor muscle scar. (L, N) Enlarged part of the dorsal margin showing ligament demipads. (A–B) PMO 224.956, (C–D, H–L) PMO 217.249, (E) PMO 217.260, (F–G) PMO 217.176, (M–N) PMO 217.245. Scale bars 5 mm.	FIGURE 3. Solemya (Petrasma) cf. woodwardiana Leckenby, 1859. (A–B) Lateral view of right valve and dorsal view of articulated specimen with shell preserved. (C–D) Lateral view of left vavle internal mould. Note weak anterior adductor muscle scar and very weak radial ornament. (E) Lateral view of right valve internal mould with shell partially preserved. Note strong radial ornament on the shell, weak on the mould, and posterior adductor muscle scar with buttress supporting the anterior side. (F–G) Lateral view of left vavle internal mould with some shell preserved in dorsal and anterior margins. Note posterior adductor muscle scar with buttress supporting its anterior side and dorsally bound by a chondrophore and weak growth lines on the posterior shell margin. (H–I) Silicone rubber cast of an internal mould showing shape of posterior adductor muscle scar and its relation to chondrophore and buttress. Note posterior adductor muscle scar surrounding the dorsal side of chondrophore and passing above the posterior end of the chondrophore. (J–K, M) Dorsal views of articulated internal moulds showing chondrophore and anterior adductor muscle scar. (L, N) Enlarged part of the dorsal margin showing ligament demipads. (A–B) PMO 224.956, (C–D, H–L) PMO 217.249, (E) PMO 217.260, (F–G) PMO 217.176, (M–N) PMO 217.245. Scale bars 5 mm.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F1EE32E04E7FB2DFCA3289A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930120/files/figure.png	http://doi.org/10.5281/zenodo.4930120	FIGURE 4. Measurements of Solemya (Petrasma) cf. woodwardiana Leckenby 1859, from Svalbard seep sites, and associated species from Europe (in mm). (A) Height to length. (B) Width to length. (C) Width to height. Full circles represent S. (P.) cf. woodwardiana from Svalbard, open squares represent S. woodwardiana from Callovian of England (Duff 1978), full square represents Unio togata from the Jurassic of Central Russia (Trautschold 1858) and a cross represents Solenomya torelli from unidentified strata of Svalbard (Lindström 1865).	FIGURE 4. Measurements of Solemya (Petrasma) cf. woodwardiana Leckenby 1859, from Svalbard seep sites, and associated species from Europe (in mm). (A) Height to length. (B) Width to length. (C) Width to height. Full circles represent S. (P.) cf. woodwardiana from Svalbard, open squares represent S. woodwardiana from Callovian of England (Duff 1978), full square represents Unio togata from the Jurassic of Central Russia (Trautschold 1858) and a cross represents Solenomya torelli from unidentified strata of Svalbard (Lindström 1865).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F12E32904E6FBC5FE5A2E56.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228091/files/figure.png	http://doi.org/10.5281/zenodo.5228091	FIGURE 5. (A–N) Nucinella svalbardensis sp. nov. (A–D) Lateral views of holotype showing shape of the articulated internal mould, anterior adductor muscle scar and possible anterior pedal retractor scar, rounded posterior margin and fine radial striations on internal mould surface. (E) Dorsal view showing weakly opisthogyrate umbo and deep ligament pit on the posterodorsal margin. (F) Anterior view showing anterior adductor muscle scar projecting weakly beyond pallial line. (G) Lateral view showing commarginal ornament on external shell surface. (H–I) Dorsal view of partially articulated specimen showing length of the cardinal teeth and relation of the possible ligament to the cardinal dentition. (J–K) Lateral view of the cardinal part of the hinge plate showing arrangement and shape of the cardinal teeth. (L) Ventral view of silicone rubber cast of the dorsal margin of articulated internal mould showing sabre-shaped lateral teeth and interlocked cardinal teeth. (M–N) Silicone rubber casts of right valve internal moulds showing two lateral teeth. (O–Q) Dacromya chetaensis Sanin, 1976. (O–P) Lateral and dorsal views showing shape of internal mould, taxodont dentition, anterior and posterior adductor muscle scars. (Q) Posterodorsal shell margin showing weak growth lines. (R–T) Mesosaccella rogovi sp. nov. (R) Lateral view of holotype left valve shell surface showing characteristic growth-line deflections around the posterior margin and carina subparallel to the dorsal margin. (S–T) Lateral view of left valve internal mould showing anterior adductor muscle scar, weak posterior adductor muscle scar and pallial line. (A–F) PMO 217.171, (G) PMO 224.978, (H–I) PMO 225.042, (J–K) PMO 224.981, (L–M) PMO 217.217, (N) PMO 225.020, (O–P) PMO 217.581, (Q) PMO 226.600, (R) PMO 224.971, (S–T) PMO 217.229. Scale bars 5 mm.	FIGURE 5. (A–N) Nucinella svalbardensis sp. nov. (A–D) Lateral views of holotype showing shape of the articulated internal mould, anterior adductor muscle scar and possible anterior pedal retractor scar, rounded posterior margin and fine radial striations on internal mould surface. (E) Dorsal view showing weakly opisthogyrate umbo and deep ligament pit on the posterodorsal margin. (F) Anterior view showing anterior adductor muscle scar projecting weakly beyond pallial line. (G) Lateral view showing commarginal ornament on external shell surface. (H–I) Dorsal view of partially articulated specimen showing length of the cardinal teeth and relation of the possible ligament to the cardinal dentition. (J–K) Lateral view of the cardinal part of the hinge plate showing arrangement and shape of the cardinal teeth. (L) Ventral view of silicone rubber cast of the dorsal margin of articulated internal mould showing sabre-shaped lateral teeth and interlocked cardinal teeth. (M–N) Silicone rubber casts of right valve internal moulds showing two lateral teeth. (O–Q) Dacromya chetaensis Sanin, 1976. (O–P) Lateral and dorsal views showing shape of internal mould, taxodont dentition, anterior and posterior adductor muscle scars. (Q) Posterodorsal shell margin showing weak growth lines. (R–T) Mesosaccella rogovi sp. nov. (R) Lateral view of holotype left valve shell surface showing characteristic growth-line deflections around the posterior margin and carina subparallel to the dorsal margin. (S–T) Lateral view of left valve internal mould showing anterior adductor muscle scar, weak posterior adductor muscle scar and pallial line. (A–F) PMO 217.171, (G) PMO 224.978, (H–I) PMO 225.042, (J–K) PMO 224.981, (L–M) PMO 217.217, (N) PMO 225.020, (O–P) PMO 217.581, (Q) PMO 226.600, (R) PMO 224.971, (S–T) PMO 217.229. Scale bars 5 mm.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F12E32904E6FBC5FE5A2E56.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930122/files/figure.png	http://doi.org/10.5281/zenodo.4930122	FIGURE 6. Measurements of Nucinella svalbardensis sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height.	FIGURE 6. Measurements of Nucinella svalbardensis sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F17E32A04E6FE2FFEEB2830.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228091/files/figure.png	http://doi.org/10.5281/zenodo.5228091	FIGURE 5. (A–N) Nucinella svalbardensis sp. nov. (A–D) Lateral views of holotype showing shape of the articulated internal mould, anterior adductor muscle scar and possible anterior pedal retractor scar, rounded posterior margin and fine radial striations on internal mould surface. (E) Dorsal view showing weakly opisthogyrate umbo and deep ligament pit on the posterodorsal margin. (F) Anterior view showing anterior adductor muscle scar projecting weakly beyond pallial line. (G) Lateral view showing commarginal ornament on external shell surface. (H–I) Dorsal view of partially articulated specimen showing length of the cardinal teeth and relation of the possible ligament to the cardinal dentition. (J–K) Lateral view of the cardinal part of the hinge plate showing arrangement and shape of the cardinal teeth. (L) Ventral view of silicone rubber cast of the dorsal margin of articulated internal mould showing sabre-shaped lateral teeth and interlocked cardinal teeth. (M–N) Silicone rubber casts of right valve internal moulds showing two lateral teeth. (O–Q) Dacromya chetaensis Sanin, 1976. (O–P) Lateral and dorsal views showing shape of internal mould, taxodont dentition, anterior and posterior adductor muscle scars. (Q) Posterodorsal shell margin showing weak growth lines. (R–T) Mesosaccella rogovi sp. nov. (R) Lateral view of holotype left valve shell surface showing characteristic growth-line deflections around the posterior margin and carina subparallel to the dorsal margin. (S–T) Lateral view of left valve internal mould showing anterior adductor muscle scar, weak posterior adductor muscle scar and pallial line. (A–F) PMO 217.171, (G) PMO 224.978, (H–I) PMO 225.042, (J–K) PMO 224.981, (L–M) PMO 217.217, (N) PMO 225.020, (O–P) PMO 217.581, (Q) PMO 226.600, (R) PMO 224.971, (S–T) PMO 217.229. Scale bars 5 mm.	FIGURE 5. (A–N) Nucinella svalbardensis sp. nov. (A–D) Lateral views of holotype showing shape of the articulated internal mould, anterior adductor muscle scar and possible anterior pedal retractor scar, rounded posterior margin and fine radial striations on internal mould surface. (E) Dorsal view showing weakly opisthogyrate umbo and deep ligament pit on the posterodorsal margin. (F) Anterior view showing anterior adductor muscle scar projecting weakly beyond pallial line. (G) Lateral view showing commarginal ornament on external shell surface. (H–I) Dorsal view of partially articulated specimen showing length of the cardinal teeth and relation of the possible ligament to the cardinal dentition. (J–K) Lateral view of the cardinal part of the hinge plate showing arrangement and shape of the cardinal teeth. (L) Ventral view of silicone rubber cast of the dorsal margin of articulated internal mould showing sabre-shaped lateral teeth and interlocked cardinal teeth. (M–N) Silicone rubber casts of right valve internal moulds showing two lateral teeth. (O–Q) Dacromya chetaensis Sanin, 1976. (O–P) Lateral and dorsal views showing shape of internal mould, taxodont dentition, anterior and posterior adductor muscle scars. (Q) Posterodorsal shell margin showing weak growth lines. (R–T) Mesosaccella rogovi sp. nov. (R) Lateral view of holotype left valve shell surface showing characteristic growth-line deflections around the posterior margin and carina subparallel to the dorsal margin. (S–T) Lateral view of left valve internal mould showing anterior adductor muscle scar, weak posterior adductor muscle scar and pallial line. (A–F) PMO 217.171, (G) PMO 224.978, (H–I) PMO 225.042, (J–K) PMO 224.981, (L–M) PMO 217.217, (N) PMO 225.020, (O–P) PMO 217.581, (Q) PMO 226.600, (R) PMO 224.971, (S–T) PMO 217.229. Scale bars 5 mm.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F16E33704E6FB78FC462BD6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228091/files/figure.png	http://doi.org/10.5281/zenodo.5228091	FIGURE 5. (A–N) Nucinella svalbardensis sp. nov. (A–D) Lateral views of holotype showing shape of the articulated internal mould, anterior adductor muscle scar and possible anterior pedal retractor scar, rounded posterior margin and fine radial striations on internal mould surface. (E) Dorsal view showing weakly opisthogyrate umbo and deep ligament pit on the posterodorsal margin. (F) Anterior view showing anterior adductor muscle scar projecting weakly beyond pallial line. (G) Lateral view showing commarginal ornament on external shell surface. (H–I) Dorsal view of partially articulated specimen showing length of the cardinal teeth and relation of the possible ligament to the cardinal dentition. (J–K) Lateral view of the cardinal part of the hinge plate showing arrangement and shape of the cardinal teeth. (L) Ventral view of silicone rubber cast of the dorsal margin of articulated internal mould showing sabre-shaped lateral teeth and interlocked cardinal teeth. (M–N) Silicone rubber casts of right valve internal moulds showing two lateral teeth. (O–Q) Dacromya chetaensis Sanin, 1976. (O–P) Lateral and dorsal views showing shape of internal mould, taxodont dentition, anterior and posterior adductor muscle scars. (Q) Posterodorsal shell margin showing weak growth lines. (R–T) Mesosaccella rogovi sp. nov. (R) Lateral view of holotype left valve shell surface showing characteristic growth-line deflections around the posterior margin and carina subparallel to the dorsal margin. (S–T) Lateral view of left valve internal mould showing anterior adductor muscle scar, weak posterior adductor muscle scar and pallial line. (A–F) PMO 217.171, (G) PMO 224.978, (H–I) PMO 225.042, (J–K) PMO 224.981, (L–M) PMO 217.217, (N) PMO 225.020, (O–P) PMO 217.581, (Q) PMO 226.600, (R) PMO 224.971, (S–T) PMO 217.229. Scale bars 5 mm.	FIGURE 5. (A–N) Nucinella svalbardensis sp. nov. (A–D) Lateral views of holotype showing shape of the articulated internal mould, anterior adductor muscle scar and possible anterior pedal retractor scar, rounded posterior margin and fine radial striations on internal mould surface. (E) Dorsal view showing weakly opisthogyrate umbo and deep ligament pit on the posterodorsal margin. (F) Anterior view showing anterior adductor muscle scar projecting weakly beyond pallial line. (G) Lateral view showing commarginal ornament on external shell surface. (H–I) Dorsal view of partially articulated specimen showing length of the cardinal teeth and relation of the possible ligament to the cardinal dentition. (J–K) Lateral view of the cardinal part of the hinge plate showing arrangement and shape of the cardinal teeth. (L) Ventral view of silicone rubber cast of the dorsal margin of articulated internal mould showing sabre-shaped lateral teeth and interlocked cardinal teeth. (M–N) Silicone rubber casts of right valve internal moulds showing two lateral teeth. (O–Q) Dacromya chetaensis Sanin, 1976. (O–P) Lateral and dorsal views showing shape of internal mould, taxodont dentition, anterior and posterior adductor muscle scars. (Q) Posterodorsal shell margin showing weak growth lines. (R–T) Mesosaccella rogovi sp. nov. (R) Lateral view of holotype left valve shell surface showing characteristic growth-line deflections around the posterior margin and carina subparallel to the dorsal margin. (S–T) Lateral view of left valve internal mould showing anterior adductor muscle scar, weak posterior adductor muscle scar and pallial line. (A–F) PMO 217.171, (G) PMO 224.978, (H–I) PMO 225.042, (J–K) PMO 224.981, (L–M) PMO 217.217, (N) PMO 225.020, (O–P) PMO 217.581, (Q) PMO 226.600, (R) PMO 224.971, (S–T) PMO 217.229. Scale bars 5 mm.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F16E33704E6FB78FC462BD6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228095/files/figure.png	http://doi.org/10.5281/zenodo.5228095	FIGURE 7. (A–F) Mesosaccella rogovi sp. nov. (A–B) Lateral view of a internal mould showing pallial line. Fragment of the shell shows concentric growth lines. (C) Dorsal view of specimen with partially preserved shell showing weak carina, escutcheon, unidentified muscle scars and ridges formed by growth line deflections. (D–E) Lateral view of right valve internal mould showing weak posterior adductor muscle scar and weak pallial line with very shallow pallial sinus. (F) Internal view of the right valve showing anterior and posterior dental rows and cardinal dentition. (G–P) Mesosaccella toddi sp. nov. (G–K) Left valve lateral views of articulated specimens. (J) Details of external ornament showing characteristic commarginal ridges and rosette-shaped ornament in interridge spaces (arrowed). (K) Holotype showing strong posterior carinae. (L–M) Anterior and posterior views of holotype. Note three carinae and escutcheon visible in the posterior view. (N) Dorsal view of holotype showing three carinae and their relation to wide and shallow escutcheon. (O) Internal view of the dorsal margin of articulated specimen showing cardinal-most teeth and unidentified muscle scars. (P) Lateral view of right valve internal mould showing relatively strong, circular anterior adductor muscle scar and elongated posterior adductor muscle scar, as well as strong pallial line with shallow pallial sinus. (A–E) PMO 217.371, (F) PMO 217.539, (G) PMO 217.609, (H) PMO 217.610, (I–J) PMO 217.616, (K–N) PMO 224.861, (O) PMO 225.031, (P) PMO 224.862. Scale bars 5 mm (A–F, K–P), 2 mm (G–I).	FIGURE 7. (A–F) Mesosaccella rogovi sp. nov. (A–B) Lateral view of a internal mould showing pallial line. Fragment of the shell shows concentric growth lines. (C) Dorsal view of specimen with partially preserved shell showing weak carina, escutcheon, unidentified muscle scars and ridges formed by growth line deflections. (D–E) Lateral view of right valve internal mould showing weak posterior adductor muscle scar and weak pallial line with very shallow pallial sinus. (F) Internal view of the right valve showing anterior and posterior dental rows and cardinal dentition. (G–P) Mesosaccella toddi sp. nov. (G–K) Left valve lateral views of articulated specimens. (J) Details of external ornament showing characteristic commarginal ridges and rosette-shaped ornament in interridge spaces (arrowed). (K) Holotype showing strong posterior carinae. (L–M) Anterior and posterior views of holotype. Note three carinae and escutcheon visible in the posterior view. (N) Dorsal view of holotype showing three carinae and their relation to wide and shallow escutcheon. (O) Internal view of the dorsal margin of articulated specimen showing cardinal-most teeth and unidentified muscle scars. (P) Lateral view of right valve internal mould showing relatively strong, circular anterior adductor muscle scar and elongated posterior adductor muscle scar, as well as strong pallial line with shallow pallial sinus. (A–E) PMO 217.371, (F) PMO 217.539, (G) PMO 217.609, (H) PMO 217.610, (I–J) PMO 217.616, (K–N) PMO 224.861, (O) PMO 225.031, (P) PMO 224.862. Scale bars 5 mm (A–F, K–P), 2 mm (G–I).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F16E33704E6FB78FC462BD6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930124/files/figure.png	http://doi.org/10.5281/zenodo.4930124	FIGURE 8. Measurements of Mesosaccella rogovi sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height. (D) Posterior length to length.	FIGURE 8. Measurements of Mesosaccella rogovi sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height. (D) Posterior length to length.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F0BE33004E6FD6FFD332BEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228095/files/figure.png	http://doi.org/10.5281/zenodo.5228095	FIGURE 7. (A–F) Mesosaccella rogovi sp. nov. (A–B) Lateral view of a internal mould showing pallial line. Fragment of the shell shows concentric growth lines. (C) Dorsal view of specimen with partially preserved shell showing weak carina, escutcheon, unidentified muscle scars and ridges formed by growth line deflections. (D–E) Lateral view of right valve internal mould showing weak posterior adductor muscle scar and weak pallial line with very shallow pallial sinus. (F) Internal view of the right valve showing anterior and posterior dental rows and cardinal dentition. (G–P) Mesosaccella toddi sp. nov. (G–K) Left valve lateral views of articulated specimens. (J) Details of external ornament showing characteristic commarginal ridges and rosette-shaped ornament in interridge spaces (arrowed). (K) Holotype showing strong posterior carinae. (L–M) Anterior and posterior views of holotype. Note three carinae and escutcheon visible in the posterior view. (N) Dorsal view of holotype showing three carinae and their relation to wide and shallow escutcheon. (O) Internal view of the dorsal margin of articulated specimen showing cardinal-most teeth and unidentified muscle scars. (P) Lateral view of right valve internal mould showing relatively strong, circular anterior adductor muscle scar and elongated posterior adductor muscle scar, as well as strong pallial line with shallow pallial sinus. (A–E) PMO 217.371, (F) PMO 217.539, (G) PMO 217.609, (H) PMO 217.610, (I–J) PMO 217.616, (K–N) PMO 224.861, (O) PMO 225.031, (P) PMO 224.862. Scale bars 5 mm (A–F, K–P), 2 mm (G–I).	FIGURE 7. (A–F) Mesosaccella rogovi sp. nov. (A–B) Lateral view of a internal mould showing pallial line. Fragment of the shell shows concentric growth lines. (C) Dorsal view of specimen with partially preserved shell showing weak carina, escutcheon, unidentified muscle scars and ridges formed by growth line deflections. (D–E) Lateral view of right valve internal mould showing weak posterior adductor muscle scar and weak pallial line with very shallow pallial sinus. (F) Internal view of the right valve showing anterior and posterior dental rows and cardinal dentition. (G–P) Mesosaccella toddi sp. nov. (G–K) Left valve lateral views of articulated specimens. (J) Details of external ornament showing characteristic commarginal ridges and rosette-shaped ornament in interridge spaces (arrowed). (K) Holotype showing strong posterior carinae. (L–M) Anterior and posterior views of holotype. Note three carinae and escutcheon visible in the posterior view. (N) Dorsal view of holotype showing three carinae and their relation to wide and shallow escutcheon. (O) Internal view of the dorsal margin of articulated specimen showing cardinal-most teeth and unidentified muscle scars. (P) Lateral view of right valve internal mould showing relatively strong, circular anterior adductor muscle scar and elongated posterior adductor muscle scar, as well as strong pallial line with shallow pallial sinus. (A–E) PMO 217.371, (F) PMO 217.539, (G) PMO 217.609, (H) PMO 217.610, (I–J) PMO 217.616, (K–N) PMO 224.861, (O) PMO 225.031, (P) PMO 224.862. Scale bars 5 mm (A–F, K–P), 2 mm (G–I).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F0BE33004E6FD6FFD332BEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930126/files/figure.png	http://doi.org/10.5281/zenodo.4930126	FIGURE 9. Measurements of Mesosaccella toddi sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height. (D) Posterior length to length.	FIGURE 9. Measurements of Mesosaccella toddi sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height. (D) Posterior length to length.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F0CE33004E6FC8BFE9E2F60.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228099/files/figure.png	http://doi.org/10.5281/zenodo.5228099	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F0FE33D04E6FC45FA352A9D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228099/files/figure.png	http://doi.org/10.5281/zenodo.5228099	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F0FE33D04E6FC45FA352A9D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930130/files/figure.png	http://doi.org/10.5281/zenodo.4930130	FIGURE 11. Measurements of Oxytoma octavia (d’Orbigny, 1850) (in mm). (A) Height to length. (B) Length of hinge line to length. (C) Length of the posterior part of the hinge line to total length of the hinge line.	FIGURE 11. Measurements of Oxytoma octavia (d’Orbigny, 1850) (in mm). (A) Height to length. (B) Length of hinge line to length. (C) Length of the posterior part of the hinge line to total length of the hinge line.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F03E33F04E6FF3DFC712C53.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228099/files/figure.png	http://doi.org/10.5281/zenodo.5228099	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F03E33E04E6F9A3FB6A2A9D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228099/files/figure.png	http://doi.org/10.5281/zenodo.5228099	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F02E33904E6F884FC952EDB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228099/files/figure.png	http://doi.org/10.5281/zenodo.5228099	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	FIGURE 10. (A–B) Pectinida gen. et. sp. indet. (A) Cross section of an articulated specimen. (B) Internal mould of the upper valve. Note possible adductor muscle scar and a line close to the dorsal margin, representing a possible dorsal furrow. (C–G) Oxytoma octavia (d’Orbigny, 1850). (C) Lateral view of a small left valve internal mould with fragments of the shell preserved showing weak radial ornament. (D) Enlarged view of anterodorsal portion area showing weak byssal notch. (E) Lateral view of a large left valve showing well developed radial ornament composed of primary and secondary ribs. (F) Lateral view of a right valve; lack of ornament is caused by shell delamination. Note very weak posterior sulcus and flattening of the valve. Probable shape of auricle is shown with dashed line (evidence from other partial specimens). (G) Plasticine cast of right valve external mould. Note radial ornament composed of primary and secondary ribs. (H–K) Camptonectes (Costicamptonectes) aff. milnelandensis Fürsich, 1982. (H–I) Right valve internal mould with shell partially preserved showing some divaricating ornament preserved close to the posterior shell margin. (J–K) External mould of right valve of a specimen from the Dorsoplanites bed, showing radial ribs close to the anterior shell margin and divaricating ornament preserved close to the posterior shell margin. (L–O) Camptonectes (Camptochlamys) clathratus (Roemer, 1836). (L–M) Lateral view of poorly preserved left valve showing cancellate external ornament in ventral margin. (N–O) Lateral view of a disarticulated and compressed shell from the Dorsoplanites bed showing cancellate ornament. Note distinct anterior auricle in the right valve. (P–R) Pseudolimea arctica (Zakharov, 1966). (P) Lateral view of left valve internal mould with some shell preserved around the ventral margin, with V-shaped ribs on the outer shell surface and corresponding rounded ribs on the internal mould. (Q) Lateral view of right valve, with anterior and posterior auricles and lack of secondary ribs caused by shell delamination. (R) Silicone rubber cast of small area of shell surface showing detail of external ornament, with large primary ribs and smaller secondary riblets in the interrib spaces. (A) PMO 226.609, (B) PMO 226.610, (C–D) PMO 217.562, (E) PMO 217.555, (F) PMO 217.214, (G) PMO 217.570, (H–I) PMO 226.606, (J–K) PMO 226.604, (L–M) PMO 226.605, (N–O) PMO 226.603, (P) PMO 217.194, (Q) PMO 217.353, (R) PMO 217.370. Scale bars 5 mm (A–I), 10 mm (J–R).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F02E33904E6F884FC952EDB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930132/files/figure.png	http://doi.org/10.5281/zenodo.4930132	FIGURE 12. Measurements of Pseudolimea arctica (Zakharov, 1966) from Svalbard seep sites, and associated species from Greenland, Europe and Siberia (in mm). Full circles represent P. arctica from Slottsmøya Member, Svalbard, crosses represent Lima (Pseudolimea) arctica from Kimmeridgian of Siberia (Zakharov 1966), open square represent P. cf. arctica from East Greenland (Fürsich 1982), asterisks represent Lima (Mantellum) parallela from Aptian–Albian of England (Woods 1904), x represents L. (P.) aff. parallela from Upper Ryazanian of Siberia (Zakharov 1966), open circles represent P. multicostata from Lower Cretaceous of eastern England (Kelly 1984). (A) Height to length. (B) Height to length (elevation) to length. (C) Height to length (elevation) to number of ribs. The grey belt represents the area presumably occupied by specimens of L. (M.) parallela from England (Woods 1904). The number of ribs for these specimens is not available.	FIGURE 12. Measurements of Pseudolimea arctica (Zakharov, 1966) from Svalbard seep sites, and associated species from Greenland, Europe and Siberia (in mm). Full circles represent P. arctica from Slottsmøya Member, Svalbard, crosses represent Lima (Pseudolimea) arctica from Kimmeridgian of Siberia (Zakharov 1966), open square represent P. cf. arctica from East Greenland (Fürsich 1982), asterisks represent Lima (Mantellum) parallela from Aptian–Albian of England (Woods 1904), x represents L. (P.) aff. parallela from Upper Ryazanian of Siberia (Zakharov 1966), open circles represent P. multicostata from Lower Cretaceous of eastern England (Kelly 1984). (A) Height to length. (B) Height to length (elevation) to length. (C) Height to length (elevation) to number of ribs. The grey belt represents the area presumably occupied by specimens of L. (M.) parallela from England (Woods 1904). The number of ribs for these specimens is not available.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F07E30704E6FBD8FD792FCE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228103/files/figure.png	http://doi.org/10.5281/zenodo.5228103	FIGURE 13. (A–J) Tehamatea rasmusseni sp. nov. (A) Lateral view of holotype showing the vertical valve displacement. (B) Detail for interior of right valve showing cardinal dentition. Note long lunule, small 3a and long 3b. (C) Lateral view of exterior of right valve showing oval outline and ornament of dense commarginal growth lines. (D–E) Silicone rubber casts of right valve cardinal areas showing small 3a and large, thick 3b cardinal teeth. (F) Oblique lateral view of a right valve internal mould showing small anterior and posterior lateral teeth. (G) Lateral view right valve internal mould showing shapes and relative sizes of anterior and posterior adductor muscle scars and wavy pallial line below anterior adductor muscle scar, representing possible mantle lobe scars. (H) Silicone rubber cast of an articulated internal mould showing anterior adductor muscle scar and anterior lateral teeth. (I) Dorsal view of an articulated shell showing long external ligament, flattened posterior shell area and deep, lancet-shape, slightly asymmetric lunule. (J) Lateral view of a right valve internal mould showing bioimmuration trace. (K–N) Cretaxinus hurumi gen. et sp. nov. (K) Lateral view of articulated holotype left valve showing shell outline. Note very weakly sulcated posterodorsal margin extending only slightly above the shell outline. (L) Holotype anterior view showing large and deep lunule. (M–N) Holotype posterior and dorsal views respectively, showing external portion of the ligament, escutcheon and posterodorsal margin sulcation. (A–B) PMO 217.234, (C) PMO 217.169, (D) PMO 217.173, (E) PMO 217.243, (F) PMO 225.111, (G) PMO 225.104, (H) PMO 225.101, (I) PMO 217.227, (J) PMO 217.247, (K–N) PMO 217.277. Scale bars 10 mm.	FIGURE 13. (A–J) Tehamatea rasmusseni sp. nov. (A) Lateral view of holotype showing the vertical valve displacement. (B) Detail for interior of right valve showing cardinal dentition. Note long lunule, small 3a and long 3b. (C) Lateral view of exterior of right valve showing oval outline and ornament of dense commarginal growth lines. (D–E) Silicone rubber casts of right valve cardinal areas showing small 3a and large, thick 3b cardinal teeth. (F) Oblique lateral view of a right valve internal mould showing small anterior and posterior lateral teeth. (G) Lateral view right valve internal mould showing shapes and relative sizes of anterior and posterior adductor muscle scars and wavy pallial line below anterior adductor muscle scar, representing possible mantle lobe scars. (H) Silicone rubber cast of an articulated internal mould showing anterior adductor muscle scar and anterior lateral teeth. (I) Dorsal view of an articulated shell showing long external ligament, flattened posterior shell area and deep, lancet-shape, slightly asymmetric lunule. (J) Lateral view of a right valve internal mould showing bioimmuration trace. (K–N) Cretaxinus hurumi gen. et sp. nov. (K) Lateral view of articulated holotype left valve showing shell outline. Note very weakly sulcated posterodorsal margin extending only slightly above the shell outline. (L) Holotype anterior view showing large and deep lunule. (M–N) Holotype posterior and dorsal views respectively, showing external portion of the ligament, escutcheon and posterodorsal margin sulcation. (A–B) PMO 217.234, (C) PMO 217.169, (D) PMO 217.173, (E) PMO 217.243, (F) PMO 225.111, (G) PMO 225.104, (H) PMO 225.101, (I) PMO 217.227, (J) PMO 217.247, (K–N) PMO 217.277. Scale bars 10 mm.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F07E30704E6FBD8FD792FCE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930134/files/figure.png	http://doi.org/10.5281/zenodo.4930134	FIGURE 14. Measurements of Tehamatea rasmusseni sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height. (D) Posterior lenght to length. (E) Width to height (inflation) to height to length (elevation). (F) Length of the lunule to length.	FIGURE 14. Measurements of Tehamatea rasmusseni sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height. (D) Posterior lenght to length. (E) Width to height (inflation) to height to length (elevation). (F) Length of the lunule to length.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F3DE30D04E6FEC7FE46286E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228103/files/figure.png	http://doi.org/10.5281/zenodo.5228103	FIGURE 13. (A–J) Tehamatea rasmusseni sp. nov. (A) Lateral view of holotype showing the vertical valve displacement. (B) Detail for interior of right valve showing cardinal dentition. Note long lunule, small 3a and long 3b. (C) Lateral view of exterior of right valve showing oval outline and ornament of dense commarginal growth lines. (D–E) Silicone rubber casts of right valve cardinal areas showing small 3a and large, thick 3b cardinal teeth. (F) Oblique lateral view of a right valve internal mould showing small anterior and posterior lateral teeth. (G) Lateral view right valve internal mould showing shapes and relative sizes of anterior and posterior adductor muscle scars and wavy pallial line below anterior adductor muscle scar, representing possible mantle lobe scars. (H) Silicone rubber cast of an articulated internal mould showing anterior adductor muscle scar and anterior lateral teeth. (I) Dorsal view of an articulated shell showing long external ligament, flattened posterior shell area and deep, lancet-shape, slightly asymmetric lunule. (J) Lateral view of a right valve internal mould showing bioimmuration trace. (K–N) Cretaxinus hurumi gen. et sp. nov. (K) Lateral view of articulated holotype left valve showing shell outline. Note very weakly sulcated posterodorsal margin extending only slightly above the shell outline. (L) Holotype anterior view showing large and deep lunule. (M–N) Holotype posterior and dorsal views respectively, showing external portion of the ligament, escutcheon and posterodorsal margin sulcation. (A–B) PMO 217.234, (C) PMO 217.169, (D) PMO 217.173, (E) PMO 217.243, (F) PMO 225.111, (G) PMO 225.104, (H) PMO 225.101, (I) PMO 217.227, (J) PMO 217.247, (K–N) PMO 217.277. Scale bars 10 mm.	FIGURE 13. (A–J) Tehamatea rasmusseni sp. nov. (A) Lateral view of holotype showing the vertical valve displacement. (B) Detail for interior of right valve showing cardinal dentition. Note long lunule, small 3a and long 3b. (C) Lateral view of exterior of right valve showing oval outline and ornament of dense commarginal growth lines. (D–E) Silicone rubber casts of right valve cardinal areas showing small 3a and large, thick 3b cardinal teeth. (F) Oblique lateral view of a right valve internal mould showing small anterior and posterior lateral teeth. (G) Lateral view right valve internal mould showing shapes and relative sizes of anterior and posterior adductor muscle scars and wavy pallial line below anterior adductor muscle scar, representing possible mantle lobe scars. (H) Silicone rubber cast of an articulated internal mould showing anterior adductor muscle scar and anterior lateral teeth. (I) Dorsal view of an articulated shell showing long external ligament, flattened posterior shell area and deep, lancet-shape, slightly asymmetric lunule. (J) Lateral view of a right valve internal mould showing bioimmuration trace. (K–N) Cretaxinus hurumi gen. et sp. nov. (K) Lateral view of articulated holotype left valve showing shell outline. Note very weakly sulcated posterodorsal margin extending only slightly above the shell outline. (L) Holotype anterior view showing large and deep lunule. (M–N) Holotype posterior and dorsal views respectively, showing external portion of the ligament, escutcheon and posterodorsal margin sulcation. (A–B) PMO 217.234, (C) PMO 217.169, (D) PMO 217.173, (E) PMO 217.243, (F) PMO 225.111, (G) PMO 225.104, (H) PMO 225.101, (I) PMO 217.227, (J) PMO 217.247, (K–N) PMO 217.277. Scale bars 10 mm.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F3DE30D04E6FEC7FE46286E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228107/files/figure.png	http://doi.org/10.5281/zenodo.5228107	FIGURE 15. Cretaxinus hurumi gen. et sp. nov. (A) Lateral view of left valve of articulated internal mould, showing broadly rounded ventral margin. (B–C) Detail of anterior margin showing weak and descending anterior adductor muscle scar fading posteriorly and its serrated dorsal margin. (D) Anterior view showing shape and size of lunule. (E) Dorsal view showing shape of the posterodorsal margin and escutcheon. (F–G) Cross-section through a ligament showing its thickness. (H) Lateral view of left valve of articulated internal mould with less rounded margin than specimen shown in (A). (I–J) Detail of a anterior margin showing weak anterior adductor muscle scar fading posteriorly. (K–L) Anterior view showing shape and size of the lunule, anterior adductor and pedal retractor muscle scars. (M) Dorsal view showing shape of the posterodorsal margin and escutcheon. (N) Lateral view of right valve internal mould. (O–P) Detail of anterior margin showing very weak anterior adductor muscle scar visible only at its anteriormost portion. (A–G) PMO 225.128, (H–M) PMO 217.172, (N–P) PMO 225.136. Scale bars 10 mm.	FIGURE 15. Cretaxinus hurumi gen. et sp. nov. (A) Lateral view of left valve of articulated internal mould, showing broadly rounded ventral margin. (B–C) Detail of anterior margin showing weak and descending anterior adductor muscle scar fading posteriorly and its serrated dorsal margin. (D) Anterior view showing shape and size of lunule. (E) Dorsal view showing shape of the posterodorsal margin and escutcheon. (F–G) Cross-section through a ligament showing its thickness. (H) Lateral view of left valve of articulated internal mould with less rounded margin than specimen shown in (A). (I–J) Detail of a anterior margin showing weak anterior adductor muscle scar fading posteriorly. (K–L) Anterior view showing shape and size of the lunule, anterior adductor and pedal retractor muscle scars. (M) Dorsal view showing shape of the posterodorsal margin and escutcheon. (N) Lateral view of right valve internal mould. (O–P) Detail of anterior margin showing very weak anterior adductor muscle scar visible only at its anteriormost portion. (A–G) PMO 225.128, (H–M) PMO 217.172, (N–P) PMO 225.136. Scale bars 10 mm.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F3DE30D04E6FEC7FE46286E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228109/files/figure.png	http://doi.org/10.5281/zenodo.5228109	FIGURE 16. (A–G) Cretaxinus hurumi gen. et sp. nov. (A) Lateral view of left valve of articulated internal mould, showing a distinct, triangular shape. (B–C) Anterior views showing shape and size of lunule and anterior pedal retractor scar. (D) Dorsal view showing shape of the posterodorsal margin. (E–F) Cardinal and posterodorsal portion of left valve internal mould shell showing posterior adductor muscle scar with distinct notch on anteroventral margin and posterior pedal retractor scar. (G) Silicone rubber cast of (E–F) showing small and elongated groove, possibly ligament groove. (H–P) Pseudotrapezium aff. groenlandicum (Spath, 1936). (H) Lateral view of the shell showing the outline and carina. (I–J) Anterior and posterior views of articulated specimen with most of the shell preserved. (K) Dorsal view showing flattened posterior area, two carinae and very thin shell. (L–M) Anterior view of articulated specimen with some preserved shell, showing deep and small lunule and rounded anterior adductor muscle scar. (N–O) Oblique posterior view showing weak pallial line and weakly impressed posterior adductor muscle scar. (P) Right valve dentition and large hinge plate. (A–D) PMO 217.540, (E–G) PMO 217.175, (H–K) PMO 226.632, (L–M) PMO 226.633, (N–O) PMO 226.635, (P) JUE no. 15926. Scale bars 10 mm (A–G), 5 mm (H–P).	FIGURE 16. (A–G) Cretaxinus hurumi gen. et sp. nov. (A) Lateral view of left valve of articulated internal mould, showing a distinct, triangular shape. (B–C) Anterior views showing shape and size of lunule and anterior pedal retractor scar. (D) Dorsal view showing shape of the posterodorsal margin. (E–F) Cardinal and posterodorsal portion of left valve internal mould shell showing posterior adductor muscle scar with distinct notch on anteroventral margin and posterior pedal retractor scar. (G) Silicone rubber cast of (E–F) showing small and elongated groove, possibly ligament groove. (H–P) Pseudotrapezium aff. groenlandicum (Spath, 1936). (H) Lateral view of the shell showing the outline and carina. (I–J) Anterior and posterior views of articulated specimen with most of the shell preserved. (K) Dorsal view showing flattened posterior area, two carinae and very thin shell. (L–M) Anterior view of articulated specimen with some preserved shell, showing deep and small lunule and rounded anterior adductor muscle scar. (N–O) Oblique posterior view showing weak pallial line and weakly impressed posterior adductor muscle scar. (P) Right valve dentition and large hinge plate. (A–D) PMO 217.540, (E–G) PMO 217.175, (H–K) PMO 226.632, (L–M) PMO 226.633, (N–O) PMO 226.635, (P) JUE no. 15926. Scale bars 10 mm (A–G), 5 mm (H–P).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F3DE30D04E6FEC7FE46286E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930136/files/figure.png	http://doi.org/10.5281/zenodo.4930136	FIGURE 17. Measurements of Cretaxinus hurumi gen. et sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height. (D) Posterior length to length.	FIGURE 17. Measurements of Cretaxinus hurumi gen. et sp. nov. (in mm). (A) Height to length. (B) Width to length. (C) Width to height. (D) Posterior length to length.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F31E30F04E6FD9FFDFD2F57.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5228109/files/figure.png	http://doi.org/10.5281/zenodo.5228109	FIGURE 16. (A–G) Cretaxinus hurumi gen. et sp. nov. (A) Lateral view of left valve of articulated internal mould, showing a distinct, triangular shape. (B–C) Anterior views showing shape and size of lunule and anterior pedal retractor scar. (D) Dorsal view showing shape of the posterodorsal margin. (E–F) Cardinal and posterodorsal portion of left valve internal mould shell showing posterior adductor muscle scar with distinct notch on anteroventral margin and posterior pedal retractor scar. (G) Silicone rubber cast of (E–F) showing small and elongated groove, possibly ligament groove. (H–P) Pseudotrapezium aff. groenlandicum (Spath, 1936). (H) Lateral view of the shell showing the outline and carina. (I–J) Anterior and posterior views of articulated specimen with most of the shell preserved. (K) Dorsal view showing flattened posterior area, two carinae and very thin shell. (L–M) Anterior view of articulated specimen with some preserved shell, showing deep and small lunule and rounded anterior adductor muscle scar. (N–O) Oblique posterior view showing weak pallial line and weakly impressed posterior adductor muscle scar. (P) Right valve dentition and large hinge plate. (A–D) PMO 217.540, (E–G) PMO 217.175, (H–K) PMO 226.632, (L–M) PMO 226.633, (N–O) PMO 226.635, (P) JUE no. 15926. Scale bars 10 mm (A–G), 5 mm (H–P).	FIGURE 16. (A–G) Cretaxinus hurumi gen. et sp. nov. (A) Lateral view of left valve of articulated internal mould, showing a distinct, triangular shape. (B–C) Anterior views showing shape and size of lunule and anterior pedal retractor scar. (D) Dorsal view showing shape of the posterodorsal margin. (E–F) Cardinal and posterodorsal portion of left valve internal mould shell showing posterior adductor muscle scar with distinct notch on anteroventral margin and posterior pedal retractor scar. (G) Silicone rubber cast of (E–F) showing small and elongated groove, possibly ligament groove. (H–P) Pseudotrapezium aff. groenlandicum (Spath, 1936). (H) Lateral view of the shell showing the outline and carina. (I–J) Anterior and posterior views of articulated specimen with most of the shell preserved. (K) Dorsal view showing flattened posterior area, two carinae and very thin shell. (L–M) Anterior view of articulated specimen with some preserved shell, showing deep and small lunule and rounded anterior adductor muscle scar. (N–O) Oblique posterior view showing weak pallial line and weakly impressed posterior adductor muscle scar. (P) Right valve dentition and large hinge plate. (A–D) PMO 217.540, (E–G) PMO 217.175, (H–K) PMO 226.632, (L–M) PMO 226.633, (N–O) PMO 226.635, (P) JUE no. 15926. Scale bars 10 mm (A–G), 5 mm (H–P).	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F31E30F04E6FD9FFDFD2F57.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930138/files/figure.png	http://doi.org/10.5281/zenodo.4930138	FIGURE 18. Measurements of Pseudotrapezium aff. groenlandicum Spath, 1936 (in mm). (A) Height to length, (B) Width to length, (C) Width to height, (D) Length of the posterior to total length.	FIGURE 18. Measurements of Pseudotrapezium aff. groenlandicum Spath, 1936 (in mm). (A) Height to length, (B) Width to length, (C) Width to height, (D) Length of the posterior to total length.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
A2311D4D9F33E30E04E6F885FB4A2FC5.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4930140/files/figure.png	http://doi.org/10.5281/zenodo.4930140	FIGURE 19. Goniomya literata (Sowerby, 1819). (A–B) Lateral views of partial right valves. (A) PMO 217.193, (B) PMO 217.358. Scale bars 10 mm.	FIGURE 19. Goniomya literata (Sowerby, 1819). (A–B) Lateral views of partial right valves. (A) PMO 217.193, (B) PMO 217.358. Scale bars 10 mm.	2014-09-02	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne		Zenodo	biologists	Hryniewicz, Krzysztof;Little, Crispin T. S.;Nakrem, Hans Arne			
