taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03CCBC02FFE43D17BADAF8BCFEBB4AC4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7333484/files/figure.png	https://doi.org/10.5281/zenodo.7333484	FIGURE. 1. Triglypta shandanensis (Chen in Zhang et al., 1976) emend. A–C, Focus-stacked images. D–F, SEM images. A, The holotype (NIGP 29776), external mould of an individual with two valves. B, The paratype (NIGP 29793), internal mould of a left valve, with some remains of the right valve. C, The paratype (NIGP 29777), internal mould of a left valve, with some remains of the right valve. D, SEM images of the same individual in Fig. 1C (NIGP 29777). E, F, growth bands near the antero-ventral margin of the carapace, ornamented by clustered puncta; clustered puncta with linear arrangements to form radial lirae. Scale bars = 1 mm in A–D, 100 μm in E and F.	FIGURE. 1. Triglypta shandanensis (Chen in Zhang et al., 1976) emend. A–C, Focus-stacked images. D–F, SEM images. A, The holotype (NIGP 29776), external mould of an individual with two valves. B, The paratype (NIGP 29793), internal mould of a left valve, with some remains of the right valve. C, The paratype (NIGP 29777), internal mould of a left valve, with some remains of the right valve. D, SEM images of the same individual in Fig. 1C (NIGP 29777). E, F, growth bands near the antero-ventral margin of the carapace, ornamented by clustered puncta; clustered puncta with linear arrangements to form radial lirae. Scale bars = 1 mm in A–D, 100 μm in E and F.	2022-08-25	TENG, XIAO		Zenodo	biologists	TENG, XIAO			
03CCBC02FFE43D17BADAF8BCFEBB4AC4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7333488/files/figure.png	https://doi.org/10.5281/zenodo.7333488	FIGURE 2. Triglypta shandanensis (Chen in Zhang et al., 1976) emend. SEM images of the external mould of the right valve of the holotype specimen in Fig. 1A (NIGP 29776). A, The external mould of the right valve. B, Growth bands in the anterior middle part of the carapace, ornamented by puncta, appearing as fine nodules on external mould. C, Growth bands in the antero-ventral part of the carapace, ornamented by clustered puncta, clustered puncta with slightly linear arrangements to form irregular radial lirae, appearing as fine irregular striae with intercalated clustered nodules on external mould. D, Growth bands in the ventral part of the carapace, ornamented by puncta, appearing as fine nodules on external mould. E, F, Growth bands near the antero-ventral and ventral margin of the carapace, ornamented by radial lirae, which are formed by linearly arranged clustered puncta, fine striae with intercalated clustered nodules on external mould. G, H, Growth bands near the anterior and posterior margin of the carapace, ornamented by dense punctate reticulation, appearing as dense nodules on external mould. Scale bars = 1 mm in A, 100 μm in B–F and H, 50 μm in G.	FIGURE 2. Triglypta shandanensis (Chen in Zhang et al., 1976) emend. SEM images of the external mould of the right valve of the holotype specimen in Fig. 1A (NIGP 29776). A, The external mould of the right valve. B, Growth bands in the anterior middle part of the carapace, ornamented by puncta, appearing as fine nodules on external mould. C, Growth bands in the antero-ventral part of the carapace, ornamented by clustered puncta, clustered puncta with slightly linear arrangements to form irregular radial lirae, appearing as fine irregular striae with intercalated clustered nodules on external mould. D, Growth bands in the ventral part of the carapace, ornamented by puncta, appearing as fine nodules on external mould. E, F, Growth bands near the antero-ventral and ventral margin of the carapace, ornamented by radial lirae, which are formed by linearly arranged clustered puncta, fine striae with intercalated clustered nodules on external mould. G, H, Growth bands near the anterior and posterior margin of the carapace, ornamented by dense punctate reticulation, appearing as dense nodules on external mould. Scale bars = 1 mm in A, 100 μm in B–F and H, 50 μm in G.	2022-08-25	TENG, XIAO		Zenodo	biologists	TENG, XIAO			
03CCBC02FFE43D17BADAF8BCFEBB4AC4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7333490/files/figure.png	https://doi.org/10.5281/zenodo.7333490	FIGURE 3. Triglypta shandanensis (Chen in Zhang et al., 1976) emend. SEM images of the holotype specimen in Fig. 1A (NIGP 29776). A, The external mould of the left valve. B–D, Growth bands in the middle part of the carapace, ornamented by puncta, appearing as fine nodules on external mould. E, F, Growth bands near the antero-ventral margin of the carapace, ornamented by radial lirae, which are formed by linearly arranged clustered puncta, fine striae with intercalated clustered nodules on external mould. G, Growth bands near the postero-ventral margin of the carapace, ornamented by dense punctate reticulation, appearing as dense nodules on external mould. Scale bars = 1 mm in A, 100 μm in B–G.	FIGURE 3. Triglypta shandanensis (Chen in Zhang et al., 1976) emend. SEM images of the holotype specimen in Fig. 1A (NIGP 29776). A, The external mould of the left valve. B–D, Growth bands in the middle part of the carapace, ornamented by puncta, appearing as fine nodules on external mould. E, F, Growth bands near the antero-ventral margin of the carapace, ornamented by radial lirae, which are formed by linearly arranged clustered puncta, fine striae with intercalated clustered nodules on external mould. G, Growth bands near the postero-ventral margin of the carapace, ornamented by dense punctate reticulation, appearing as dense nodules on external mould. Scale bars = 1 mm in A, 100 μm in B–G.	2022-08-25	TENG, XIAO		Zenodo	biologists	TENG, XIAO			
03CCBC02FFE43D17BADAF8BCFEBB4AC4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	http://table.plazi.org/id/DF1A5D9CFFE43D13B90DF947FBF24FC0		Measurements.	Measurements.	2022-08-25	TENG, XIAO		Zenodo	biologists	TENG, XIAO			
03CCBC02FFE03D17BADAFB07FC564D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7333494/files/figure.png	https://doi.org/10.5281/zenodo.7333494	FIGURE 4. Sinokontikia lianmuqinensis Wang, 1985. Type specimens (NIGP 130637) in Shen et al., 2002. A, Focus-stacked images. B–G, SEM images.A, External mould of a right valve. B, Growth bands in the anterior part of the carapace, ornamented by irregularly stretched tubercles, appearing as irregular reticulation on external mould. C and D, Growth bands in the antero-ventral part of the carapace, ornamented by irregularly stretched tubercles, tubercles stretched vertically on the lower part of each growth band, appearing as irregular reticulation with radial lirae on the lower part of each growth band in the external mould. E–G, Growth bands in the postero-ventral part of the carapace, ornamented by irregular tubercles, tubercles stretched transversely, appearing as irregular reticulation, some growth bands with transversely reticulation on external mould. Scale bars = 1 mm in A, 100 μm in B and D–G, 200 μm in C.	FIGURE 4. Sinokontikia lianmuqinensis Wang, 1985. Type specimens (NIGP 130637) in Shen et al., 2002. A, Focus-stacked images. B–G, SEM images.A, External mould of a right valve. B, Growth bands in the anterior part of the carapace, ornamented by irregularly stretched tubercles, appearing as irregular reticulation on external mould. C and D, Growth bands in the antero-ventral part of the carapace, ornamented by irregularly stretched tubercles, tubercles stretched vertically on the lower part of each growth band, appearing as irregular reticulation with radial lirae on the lower part of each growth band in the external mould. E–G, Growth bands in the postero-ventral part of the carapace, ornamented by irregular tubercles, tubercles stretched transversely, appearing as irregular reticulation, some growth bands with transversely reticulation on external mould. Scale bars = 1 mm in A, 100 μm in B and D–G, 200 μm in C.	2022-08-25	TENG, XIAO		Zenodo	biologists	TENG, XIAO			
03CCBC02FFE03D1BB978F9F7FA694B17.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7333498/files/figure.png	https://doi.org/10.5281/zenodo.7333498	FIGURE 5. Euestheria jingyuanensis Chen in Zhang et al., 1976 emend. A–C, Focus-stacked images. D, E, SEM images. A, The holotype (NIGP 29784), left valve. B, The paratype (NIGP 29783), external mould of holotype. C, The paratype (NIGP 29785), left valve. D, SEM images of the same individual in Fig. 5C (NIGP 29785). E, Growth bands on the antero-ventral part of the carapace, ornamented by irregular tubercles, tubercle stretched irregularly to form reticulation, mesh is 11–18 μm in diameter; and tubercles on the marginal region of the carapace stretched vertically to form radial lirae. Scale bars = 1 mm in A–D, 100 μm in E.	FIGURE 5. Euestheria jingyuanensis Chen in Zhang et al., 1976 emend. A–C, Focus-stacked images. D, E, SEM images. A, The holotype (NIGP 29784), left valve. B, The paratype (NIGP 29783), external mould of holotype. C, The paratype (NIGP 29785), left valve. D, SEM images of the same individual in Fig. 5C (NIGP 29785). E, Growth bands on the antero-ventral part of the carapace, ornamented by irregular tubercles, tubercle stretched irregularly to form reticulation, mesh is 11–18 μm in diameter; and tubercles on the marginal region of the carapace stretched vertically to form radial lirae. Scale bars = 1 mm in A–D, 100 μm in E.	2022-08-25	TENG, XIAO		Zenodo	biologists	TENG, XIAO			
03CCBC02FFE03D1BB978F9F7FA694B17.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/7333500/files/figure.png	https://doi.org/10.5281/zenodo.7333500	FIGURE 6. Euestheria jingyuanensis Chen in Zhang et al., 1976 emend. SEM Images of the holotype specimens in Fig. 5A (NIGP 29784). A, Left valve. B–E, growth bands in the upper and middle part of the carapace, ornamented with very fine reticulation, mesh is 2–4 μm in diameter, mesh wall very thick and bulge, makes reticulation seems very sparse. F, growth bands near the anterior, antero-ventral, and postero-ventral margin of the carapace, ornamented with irregular tubercles, tubercles stretched vertically and with linear arrangements to form radial lirae. Scale bars = 1 mm in A, 10 μm in B and C, 50 μm in D–G, 100 μm in H.	FIGURE 6. Euestheria jingyuanensis Chen in Zhang et al., 1976 emend. SEM Images of the holotype specimens in Fig. 5A (NIGP 29784). A, Left valve. B–E, growth bands in the upper and middle part of the carapace, ornamented with very fine reticulation, mesh is 2–4 μm in diameter, mesh wall very thick and bulge, makes reticulation seems very sparse. F, growth bands near the anterior, antero-ventral, and postero-ventral margin of the carapace, ornamented with irregular tubercles, tubercles stretched vertically and with linear arrangements to form radial lirae. Scale bars = 1 mm in A, 10 μm in B and C, 50 μm in D–G, 100 μm in H.	2022-08-25	TENG, XIAO		Zenodo	biologists	TENG, XIAO			
