taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03E7DD69FFD98656244B7F34FCEB3D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFD98656244B7F34FCEB3D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538211/files/figure.png	http://doi.org/10.5281/zenodo.4538211	FIG. 4. — Radii of Dusignathus sp., cf. D. seftoni: A, VMS 2, right radius in lateral view; B, VMS 2, medial view;C, UCMP 219005, fragment of right radius, in lateral view; D, UCMP 219005 in medial view; E, UCMP 219005 in distal view. Scale bar: 3 cm.	FIG. 4. — Radii of Dusignathus sp., cf. D. seftoni: A, VMS 2, right radius in lateral view; B, VMS 2, medial view;C, UCMP 219005, fragment of right radius, in lateral view; D, UCMP 219005 in medial view; E, UCMP 219005 in distal view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFD98656244B7F34FCEB3D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538213/files/figure.png	http://doi.org/10.5281/zenodo.4538213	FIG. 5. — Vertebrae of Dusignathus sp., cf. D. seftoni: A, UCMP 219006, fragment of left side of atlas in posterior view; B, UCMP 219006 in anterior view; C, UCMP 219006 in dorsal view; D, UCMP 219001,partial cervical vertebra in anterior view;E, UCMP 219001 in lateral view. Scale bar: 3 cm.	FIG. 5. — Vertebrae of Dusignathus sp., cf. D. seftoni: A, UCMP 219006, fragment of left side of atlas in posterior view; B, UCMP 219006 in anterior view; C, UCMP 219006 in dorsal view; D, UCMP 219001,partial cervical vertebra in anterior view;E, UCMP 219001 in lateral view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFDD864E279279CEFB9B3834.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFDD864E279279CEFB9B3834.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538219/files/figure.png	http://doi.org/10.5281/zenodo.4538219	FIG. 7. — Skeletal elements of Callorhinus sp., cf. C. gilmorei: A, UCMP 219147, right upper third incisor, in lateral view; B, UCMP 219147 in lingual view; C, UCMP 219147 in mesial view; D, UCMP 219147 in basal view; E, UCMP 219003, fragment of lower canine in lingual view; F, UCMP 219003 in labial view; G, UCMP 86297, partial left humerus in anterior view (deltopectoral crest partially reconstructed); H, UCMP 86297 in lateral view; I, UCMP 86297 in posterior view; J, UCMP 86297 in medial view. Scale bars: 1 cm.	FIG. 7. — Skeletal elements of Callorhinus sp., cf. C. gilmorei: A, UCMP 219147, right upper third incisor, in lateral view; B, UCMP 219147 in lingual view; C, UCMP 219147 in mesial view; D, UCMP 219147 in basal view; E, UCMP 219003, fragment of lower canine in lingual view; F, UCMP 219003 in labial view; G, UCMP 86297, partial left humerus in anterior view (deltopectoral crest partially reconstructed); H, UCMP 86297 in lateral view; I, UCMP 86297 in posterior view; J, UCMP 86297 in medial view. Scale bars: 1 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFDD864E279279CEFB9B3834.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538223/files/figure.png	http://doi.org/10.5281/zenodo.4538223	FIG. 8. — Radii of Callorhinus sp., cf. C. gilmorei: A, UCMP 219139, right radius in lateral view; B, UCMP 219139 in medial view; C, UCMP 219138, partial right radius in lateral view; D, UCMP 219138 in medial view. Scale bar: 3 cm.	FIG. 8. — Radii of Callorhinus sp., cf. C. gilmorei: A, UCMP 219139, right radius in lateral view; B, UCMP 219139 in medial view; C, UCMP 219138, partial right radius in lateral view; D, UCMP 219138 in medial view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFDD864E279279CEFB9B3834.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538225/files/figure.png	http://doi.org/10.5281/zenodo.4538225	FIG. 9. — Tarsal elements of Callorhinus sp., cf. C. gilmorei: A, UCMP 219122, right calcaneum in dorsal view; B, UCMP 219122 in plantar view; C, UCMP 219122 in medial view; D, UCMP 219149, left astragalus in dorsal view; E, UCMP 219149 in plantar view. Scale bar: 3 cm.	FIG. 9. — Tarsal elements of Callorhinus sp., cf. C. gilmorei: A, UCMP 219122, right calcaneum in dorsal view; B, UCMP 219122 in plantar view; C, UCMP 219122 in medial view; D, UCMP 219149, left astragalus in dorsal view; E, UCMP 219149 in plantar view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC38648240D7FB5FE2A3F72.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC38648240D7FB5FE2A3F72.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538227/files/figure.png	http://doi.org/10.5281/zenodo.4538227	FIG. 10. — Tympanic bullae of balaenid mysticetes:A, UCMP 219100,partial right tympanic bulla of cf. Eubalaena sp. 1 in medial view; B, UCMP 219100 in dorsal view; C, UCMP 219100 in ventral view; D, UCMP 219099, partial left tympanic bulla of cf. Eubalaena sp. 2 in medial view; E, UCMP 219099 in dorsal view; F, UCMP 219481, fragment of right tympanic bulla of cf. Eubalaena sp. 1 in medial view. Scale bar: 3 cm.	FIG. 10. — Tympanic bullae of balaenid mysticetes:A, UCMP 219100,partial right tympanic bulla of cf. Eubalaena sp. 1 in medial view; B, UCMP 219100 in dorsal view; C, UCMP 219100 in ventral view; D, UCMP 219099, partial left tympanic bulla of cf. Eubalaena sp. 2 in medial view; E, UCMP 219099 in dorsal view; F, UCMP 219481, fragment of right tympanic bulla of cf. Eubalaena sp. 1 in medial view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC58648265078EBFB2C3E7F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC58648265078EBFB2C3E7F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538227/files/figure.png	http://doi.org/10.5281/zenodo.4538227	FIG. 10. — Tympanic bullae of balaenid mysticetes:A, UCMP 219100,partial right tympanic bulla of cf. Eubalaena sp. 1 in medial view; B, UCMP 219100 in dorsal view; C, UCMP 219100 in ventral view; D, UCMP 219099, partial left tympanic bulla of cf. Eubalaena sp. 2 in medial view; E, UCMP 219099 in dorsal view; F, UCMP 219481, fragment of right tympanic bulla of cf. Eubalaena sp. 1 in medial view. Scale bar: 3 cm.	FIG. 10. — Tympanic bullae of balaenid mysticetes:A, UCMP 219100,partial right tympanic bulla of cf. Eubalaena sp. 1 in medial view; B, UCMP 219100 in dorsal view; C, UCMP 219100 in ventral view; D, UCMP 219099, partial left tympanic bulla of cf. Eubalaena sp. 2 in medial view; E, UCMP 219099 in dorsal view; F, UCMP 219481, fragment of right tympanic bulla of cf. Eubalaena sp. 1 in medial view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC5867B2466798FFE2E3F51.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538229/files/figure.png	http://doi.org/10.5281/zenodo.4538229	FIG. 11. — Holotype cranium of Balaenoptera bertae n. sp., UCMP 21907, in dorsal view: A, photograph; B, interpretive line drawing. Cross hatching denotes broken or missing bone, and gray denotes adhering matrix. Scale bar: 10 cm.	FIG. 11. — Holotype cranium of Balaenoptera bertae n. sp., UCMP 21907, in dorsal view: A, photograph; B, interpretive line drawing. Cross hatching denotes broken or missing bone, and gray denotes adhering matrix. Scale bar: 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC5867B2466798FFE2E3F51.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538231/files/figure.png	http://doi.org/10.5281/zenodo.4538231	FIG. 12. — Holotype cranium of Balaenoptera bertae n. sp., UCMP 21907, in ventral view:A, photograph; B, interpretive line drawing. Cross hatching denotes broken or missing bone, and gray denotes adhering matrix. Scale bar: 10 cm.	FIG. 12. — Holotype cranium of Balaenoptera bertae n. sp., UCMP 21907, in ventral view:A, photograph; B, interpretive line drawing. Cross hatching denotes broken or missing bone, and gray denotes adhering matrix. Scale bar: 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC5867B2466798FFE2E3F51.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538233/files/figure.png	http://doi.org/10.5281/zenodo.4538233	FIG. 13. — Holotype cranium of Balaenoptera bertae n. sp., UCMP 219078,in lateral view: A, photograph; B, interpretive line drawing. Cross hatching denotes broken or missing bone, and gray denotes adhering matrix. Scale bar: 10 cm.	FIG. 13. — Holotype cranium of Balaenoptera bertae n. sp., UCMP 219078,in lateral view: A, photograph; B, interpretive line drawing. Cross hatching denotes broken or missing bone, and gray denotes adhering matrix. Scale bar: 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC5867B2466798FFE2E3F51.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538237/files/figure.png	http://doi.org/10.5281/zenodo.4538237	FIG. 14. — Vertex of holotype cranium of Balaenoptera bertae n. sp., UCMP 219078: A, dorsal view of vertex; B, interpretive line drawing. Gray color denotes matrix, and cross-hatching represents damaged or missing bone. Scale bar: 10 cm.	FIG. 14. — Vertex of holotype cranium of Balaenoptera bertae n. sp., UCMP 219078: A, dorsal view of vertex; B, interpretive line drawing. Gray color denotes matrix, and cross-hatching represents damaged or missing bone. Scale bar: 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC5867B2466798FFE2E3F51.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538241/files/figure.png	http://doi.org/10.5281/zenodo.4538241	FIG. 15. — Holotype skull of Balaenoptera bertae n. sp., UCMP 219078: A, skull in posterodorsal view; B, right auditory region in ventral view; C, left auditory region in ventral view. Left paroccipital process is complete, but obscured by plaster display cradle. Scale bars: 10 cm.	FIG. 15. — Holotype skull of Balaenoptera bertae n. sp., UCMP 219078: A, skull in posterodorsal view; B, right auditory region in ventral view; C, left auditory region in ventral view. Left paroccipital process is complete, but obscured by plaster display cradle. Scale bars: 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC5867B2466798FFE2E3F51.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538243/files/figure.png	http://doi.org/10.5281/zenodo.4538243	FIG. 16. — Possible taphonomic pathway of the holotype specimen of Balaenoptera bertae n. sp.: A, death; B, initial decay,bloat, and floating; C, advanced skeletonization of the facial region and loss of rostral elements; D, continued skeletonization of the facial region and the loss of petrotympanics and mandibles; E, loss of the cranium from the carcass; F, arrival of the skull on the seafloor in the ventral-up position; G, collapse and rotation of the vomer and frontals and contact with the seafloor; H, burial; I, diagenetic compaction and fracturing of basicranial elements; J, formation of a concretion during later diagenesis.	FIG. 16. — Possible taphonomic pathway of the holotype specimen of Balaenoptera bertae n. sp.: A, death; B, initial decay,bloat, and floating; C, advanced skeletonization of the facial region and loss of rostral elements; D, continued skeletonization of the facial region and the loss of petrotympanics and mandibles; E, loss of the cranium from the carcass; F, arrival of the skull on the seafloor in the ventral-up position; G, collapse and rotation of the vomer and frontals and contact with the seafloor; H, burial; I, diagenetic compaction and fracturing of basicranial elements; J, formation of a concretion during later diagenesis.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC5867B2466798FFE2E3F51.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538245/files/figure.png	http://doi.org/10.5281/zenodo.4538245	FIG. 17. — Reconstruction of the skull of Balaenoptera bertae n. sp.; A, lateral view; B, ventral view; C, dorsal view. Scale bar: 20 cm.	FIG. 17. — Reconstruction of the skull of Balaenoptera bertae n. sp.; A, lateral view; B, ventral view; C, dorsal view. Scale bar: 20 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFC5867B2466798FFE2E3F51.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538247/files/figure.png	http://doi.org/10.5281/zenodo.4538247	FIG. 18. — Strict consensus tree of the phylogenetic analysis executed, including Balaenoptera bertae n. sp. within the data matrix of Marx (2011). Basal parts of the tree outside the Caperea + Balaenopteroidea clade are not shown; support values are Bremer support and GC frequency values. †, denotes extinct taxa.	FIG. 18. — Strict consensus tree of the phylogenetic analysis executed, including Balaenoptera bertae n. sp. within the data matrix of Marx (2011). Basal parts of the tree outside the Caperea + Balaenopteroidea clade are not shown; support values are Bremer support and GC frequency values. †, denotes extinct taxa.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFF6867A273178CBFCED38F2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFF6867A273178CBFCED38F2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538249/files/figure.png	http://doi.org/10.5281/zenodo.4538249	FIG. 19. — Right petrosal of “Balaenoptera” cortesi “var.” portisi (UCMP 219135); A, medial view; B, lateral view; C, ventral view; D, dorsal view. Scale bar: 3 cm.	FIG. 19. — Right petrosal of “Balaenoptera” cortesi “var.” portisi (UCMP 219135); A, medial view; B, lateral view; C, ventral view; D, dorsal view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFF78677241C786AFD8C3FF0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFF78677241C786AFD8C3FF0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538251/files/figure.png	http://doi.org/10.5281/zenodo.4538251	FIG. 20.— Right petrosal of cf.Balaenoptera (UCMP 219146);A, medial view;B, lateral view;C, ventral view;D, dorsal view.Scale bar:3 cm.	FIG. 20.— Right petrosal of cf.Balaenoptera (UCMP 219146);A, medial view;B, lateral view;C, ventral view;D, dorsal view.Scale bar:3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFFA8670278F7968FC3C3D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFFA8670278F7968FC3C3D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538253/files/figure.png	http://doi.org/10.5281/zenodo.4538253	FIG. 21. — Tympanic bullae of Balaenopteridae gen. et sp. indet., morphotype 1; A, UCMP 219478, left tympanic in medial view; B, UCMP 219478 in dorsal view; C, UCMP 219478 in ventral view; D, UCMP 219097 in medial view; E, UCMP 219097 in dorsal view; F, UCMP 219097 in ventral view. Scale bar: 3 cm.	FIG. 21. — Tympanic bullae of Balaenopteridae gen. et sp. indet., morphotype 1; A, UCMP 219478, left tympanic in medial view; B, UCMP 219478 in dorsal view; C, UCMP 219478 in ventral view; D, UCMP 219097 in medial view; E, UCMP 219097 in dorsal view; F, UCMP 219097 in ventral view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFFA8670278F7968FC3C3D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538255/files/figure.png	http://doi.org/10.5281/zenodo.4538255	FIG. 22. — Tympanic bullae of Balaenopteridae gen. et sp. indet., morphotype 2; A, UCMP 219098, right tympanic bulla in medial view; B, UCMP 219098 in dorsal view;C, UCMP 219098 in ventral view; D, UCMP 219107,partial right tympanic bulla in medial view; E, UCMP 219107 in dorsal view; F, UCMP 219107 in ventral view. Scale bar: 3 cm.	FIG. 22. — Tympanic bullae of Balaenopteridae gen. et sp. indet., morphotype 2; A, UCMP 219098, right tympanic bulla in medial view; B, UCMP 219098 in dorsal view;C, UCMP 219098 in ventral view; D, UCMP 219107,partial right tympanic bulla in medial view; E, UCMP 219107 in dorsal view; F, UCMP 219107 in ventral view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFFA8670278F7968FC3C3D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538257/files/figure.png	http://doi.org/10.5281/zenodo.4538257	FIG. 23.— UCMP 219137,posterior process of right petrotympanic of Balaenopteridae gen. et sp. indet.: A, posterior process in anterolateral view; B, posterior process in ventral view; C, posterior process in posteromedial view. Scale bar: 3 cm.	FIG. 23.— UCMP 219137,posterior process of right petrotympanic of Balaenopteridae gen. et sp. indet.: A, posterior process in anterolateral view; B, posterior process in ventral view; C, posterior process in posteromedial view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFFA8670278F7968FC3C3D9B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538259/files/figure.png	http://doi.org/10.5281/zenodo.4538259	FIG. 24. — UCMP 219141, posterior fragment of left mandible of Balaenopteridae gen. et sp. indet.: A, mandible in dorsal view; B, mandible in lateral view; C, mandible in medial view. Scale bar: 10 cm.	FIG. 24. — UCMP 219141, posterior fragment of left mandible of Balaenopteridae gen. et sp. indet.: A, mandible in dorsal view; B, mandible in lateral view; C, mandible in medial view. Scale bar: 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFE18665241C7835FCDA38B3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFE18665241C7835FCDA38B3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538265/files/figure.png	http://doi.org/10.5281/zenodo.4538265	FIG. 27. — UCMP partial right squamosal (UCMP 219479) of Herpetocetus sp.; A, ventral view; B, dorsal view; C, ventral view with right petrosal and posterior process (UCMP 219114) in articulation; D, lateral view (without petrosal). Scale bar: 3 cm.	FIG. 27. — UCMP partial right squamosal (UCMP 219479) of Herpetocetus sp.; A, ventral view; B, dorsal view; C, ventral view with right petrosal and posterior process (UCMP 219114) in articulation; D, lateral view (without petrosal). Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFE18665241C7835FCDA38B3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538267/files/figure.png	http://doi.org/10.5281/zenodo.4538267	FIG. 28. — Petrosals of Herpetocetus sp.; right petrosal with attached compound posterior process, UCMP 219114 in A, ventral view; B, dorsal view,and C, medial view;D, compound posterior process of UCMP 219114 in posterolateral view;left petrosal UCMP 219115 in E, ventral view, F, dorsal view, G, medial view, and H, posterior view. Scale bar: 3 cm.	FIG. 28. — Petrosals of Herpetocetus sp.; right petrosal with attached compound posterior process, UCMP 219114 in A, ventral view; B, dorsal view,and C, medial view;D, compound posterior process of UCMP 219114 in posterolateral view;left petrosal UCMP 219115 in E, ventral view, F, dorsal view, G, medial view, and H, posterior view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFE18665241C7835FCDA38B3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538271/files/figure.png	http://doi.org/10.5281/zenodo.4538271	FIG. 29. — Petrotympanic elements of Herpetocetus sp.; A, UCMP 219117, partial right tympanic bulla in medial view; B, UCMP 219117 in dorsal view; C, UCMP 219117 in ventral view; D, UCMP 219116, compound posterior process of left petrotympanic in anterior view; E, UCMP 219116, posterior process of left petrosal in posterior view; F, UCMP 219116, posterior process of left petrosal in posterolateral view. Scale bar: 3 cm.	FIG. 29. — Petrotympanic elements of Herpetocetus sp.; A, UCMP 219117, partial right tympanic bulla in medial view; B, UCMP 219117 in dorsal view; C, UCMP 219117 in ventral view; D, UCMP 219116, compound posterior process of left petrotympanic in anterior view; E, UCMP 219116, posterior process of left petrosal in posterior view; F, UCMP 219116, posterior process of left petrosal in posterolateral view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFE18665241C7835FCDA38B3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538273/files/figure.png	http://doi.org/10.5281/zenodo.4538273	FIG. 30. — Partial right mandible of Herpetocetus sp. (UCMP 219077); A, medial view; B, lateral view; C, dorsal view; D, interpretive line drawing in dorsal view with cross section outlines (lateral direction in cross-sections is to left side). Numbers adjacent to cross sections indicate distance from broken anterior surface (measured in centimeters). Scale bar: 10 cm.	FIG. 30. — Partial right mandible of Herpetocetus sp. (UCMP 219077); A, medial view; B, lateral view; C, dorsal view; D, interpretive line drawing in dorsal view with cross section outlines (lateral direction in cross-sections is to left side). Numbers adjacent to cross sections indicate distance from broken anterior surface (measured in centimeters). Scale bar: 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFE886642454786AFE7A3F71.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FFE886642454786AFE7A3F71.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538275/files/figure.png	http://doi.org/10.5281/zenodo.4538275	FIG. 31. — Partial humerus of Odontoceti gen. et sp. indet.: A, UCMP 219175, anterior or posterior view; B, UCMP 219175 in medial view; C, UCMP 219175 in anterior or posterior view. Scale bar: 3 cm.	FIG. 31. — Partial humerus of Odontoceti gen. et sp. indet.: A, UCMP 219175, anterior or posterior view; B, UCMP 219175 in medial view; C, UCMP 219175 in anterior or posterior view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF97861A279B7D72FDA23E5E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF97861A279B7D72FDA23E5E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538293/files/figure.png	http://doi.org/10.5281/zenodo.4538293	FIG. 39. — Tympanic bullae of delphinoid odontocetes; A, UCMP 219176, Phocoenidae gen. et sp. indet. in dorsal view; B, UCMP 219174,Delphinidae gen.et sp.indet.in dorsal view;C, UCMP 219034, cf. Globicephalinae gen. et sp. indet. in dorsal view; D, UCMP 219176 in medial view; E, UCMP 219174 in medial view; F, UCMP 219034 in medial view; H, UCMP 219176 in ventral view; I, UCMP 219174 in ventral view; J, UCMP 219034 in ventral view; K, comparison of interpretive line drawings of extant delphinids; specimen numbers for extant specimens are as follows: Globicephala macrorhynchus Gray, 1846, CAS 16466; Grampus griseus Cuvier, 1812, CAS 13461; Orcinus orca Linnaeus, 1758, CAS 23814; Pseudorca crassidens Owen, 1846, AMNH 18965; Tursiops truncatus Gray, 1866, CAS 16183). Scale bars: 3 cm.	FIG. 39. — Tympanic bullae of delphinoid odontocetes; A, UCMP 219176, Phocoenidae gen. et sp. indet. in dorsal view; B, UCMP 219174,Delphinidae gen.et sp.indet.in dorsal view;C, UCMP 219034, cf. Globicephalinae gen. et sp. indet. in dorsal view; D, UCMP 219176 in medial view; E, UCMP 219174 in medial view; F, UCMP 219034 in medial view; H, UCMP 219176 in ventral view; I, UCMP 219174 in ventral view; J, UCMP 219034 in ventral view; K, comparison of interpretive line drawings of extant delphinids; specimen numbers for extant specimens are as follows: Globicephala macrorhynchus Gray, 1846, CAS 16466; Grampus griseus Cuvier, 1812, CAS 13461; Orcinus orca Linnaeus, 1758, CAS 23814; Pseudorca crassidens Owen, 1846, AMNH 18965; Tursiops truncatus Gray, 1866, CAS 16183). Scale bars: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF97861427F1798EFB223F71.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF97861427F1798EFB223F71.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538295/files/figure.png	http://doi.org/10.5281/zenodo.4538295	FIG. 40.— Partial tooth of cf. Globicephalinae gen.et sp.indet.in: A, anterior or posterior view (UCMP 219162);B, anterior or posterior view (UCMP 219162); C, lingual view (UCMP 219162); D, apical view (UCMP 219162). Scale bar: 1 cm.	FIG. 40.— Partial tooth of cf. Globicephalinae gen.et sp.indet.in: A, anterior or posterior view (UCMP 219162);B, anterior or posterior view (UCMP 219162); C, lingual view (UCMP 219162); D, apical view (UCMP 219162). Scale bar: 1 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF97861427F1798EFB223F71.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538293/files/figure.png	http://doi.org/10.5281/zenodo.4538293	FIG. 39. — Tympanic bullae of delphinoid odontocetes; A, UCMP 219176, Phocoenidae gen. et sp. indet. in dorsal view; B, UCMP 219174,Delphinidae gen.et sp.indet.in dorsal view;C, UCMP 219034, cf. Globicephalinae gen. et sp. indet. in dorsal view; D, UCMP 219176 in medial view; E, UCMP 219174 in medial view; F, UCMP 219034 in medial view; H, UCMP 219176 in ventral view; I, UCMP 219174 in ventral view; J, UCMP 219034 in ventral view; K, comparison of interpretive line drawings of extant delphinids; specimen numbers for extant specimens are as follows: Globicephala macrorhynchus Gray, 1846, CAS 16466; Grampus griseus Cuvier, 1812, CAS 13461; Orcinus orca Linnaeus, 1758, CAS 23814; Pseudorca crassidens Owen, 1846, AMNH 18965; Tursiops truncatus Gray, 1866, CAS 16183). Scale bars: 3 cm.	FIG. 39. — Tympanic bullae of delphinoid odontocetes; A, UCMP 219176, Phocoenidae gen. et sp. indet. in dorsal view; B, UCMP 219174,Delphinidae gen.et sp.indet.in dorsal view;C, UCMP 219034, cf. Globicephalinae gen. et sp. indet. in dorsal view; D, UCMP 219176 in medial view; E, UCMP 219174 in medial view; F, UCMP 219034 in medial view; H, UCMP 219176 in ventral view; I, UCMP 219174 in ventral view; J, UCMP 219034 in ventral view; K, comparison of interpretive line drawings of extant delphinids; specimen numbers for extant specimens are as follows: Globicephala macrorhynchus Gray, 1846, CAS 16466; Grampus griseus Cuvier, 1812, CAS 13461; Orcinus orca Linnaeus, 1758, CAS 23814; Pseudorca crassidens Owen, 1846, AMNH 18965; Tursiops truncatus Gray, 1866, CAS 16183). Scale bars: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF998617244A78A8FDCD3E5E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF998617244A78A8FDCD3E5E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538293/files/figure.png	http://doi.org/10.5281/zenodo.4538293	FIG. 39. — Tympanic bullae of delphinoid odontocetes; A, UCMP 219176, Phocoenidae gen. et sp. indet. in dorsal view; B, UCMP 219174,Delphinidae gen.et sp.indet.in dorsal view;C, UCMP 219034, cf. Globicephalinae gen. et sp. indet. in dorsal view; D, UCMP 219176 in medial view; E, UCMP 219174 in medial view; F, UCMP 219034 in medial view; H, UCMP 219176 in ventral view; I, UCMP 219174 in ventral view; J, UCMP 219034 in ventral view; K, comparison of interpretive line drawings of extant delphinids; specimen numbers for extant specimens are as follows: Globicephala macrorhynchus Gray, 1846, CAS 16466; Grampus griseus Cuvier, 1812, CAS 13461; Orcinus orca Linnaeus, 1758, CAS 23814; Pseudorca crassidens Owen, 1846, AMNH 18965; Tursiops truncatus Gray, 1866, CAS 16183). Scale bars: 3 cm.	FIG. 39. — Tympanic bullae of delphinoid odontocetes; A, UCMP 219176, Phocoenidae gen. et sp. indet. in dorsal view; B, UCMP 219174,Delphinidae gen.et sp.indet.in dorsal view;C, UCMP 219034, cf. Globicephalinae gen. et sp. indet. in dorsal view; D, UCMP 219176 in medial view; E, UCMP 219174 in medial view; F, UCMP 219034 in medial view; H, UCMP 219176 in ventral view; I, UCMP 219174 in ventral view; J, UCMP 219034 in ventral view; K, comparison of interpretive line drawings of extant delphinids; specimen numbers for extant specimens are as follows: Globicephala macrorhynchus Gray, 1846, CAS 16466; Grampus griseus Cuvier, 1812, CAS 13461; Orcinus orca Linnaeus, 1758, CAS 23814; Pseudorca crassidens Owen, 1846, AMNH 18965; Tursiops truncatus Gray, 1866, CAS 16183). Scale bars: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF9A8611279479AEFDF838F2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF9A8611279479AEFDF838F2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538297/files/figure.png	http://doi.org/10.5281/zenodo.4538297	FIG. 41. — Left petrosal of Phocoenidae unnamed genus 1 (UCMP 219840); A, ventral view; B, dorsal view; C, medial view. Scale bar: 20 mm.	FIG. 41. — Left petrosal of Phocoenidae unnamed genus 1 (UCMP 219840); A, ventral view; B, dorsal view; C, medial view. Scale bar: 20 mm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF9C860C2794786AFB003FB0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF9C860C2794786AFB003FB0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538299/files/figure.png	http://doi.org/10.5281/zenodo.4538299	FIG. 42. — Cranium of Phocoenidae unnamed genus 2 (UCMP 219503);A, dorsal view;B, right lateral view;C, left lateral view;D, ventral view. Scale bar: 5 cm.	FIG. 42. — Cranium of Phocoenidae unnamed genus 2 (UCMP 219503);A, dorsal view;B, right lateral view;C, left lateral view;D, ventral view. Scale bar: 5 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF9C860C2794786AFB003FB0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538301/files/figure.png	http://doi.org/10.5281/zenodo.4538301	FIG. 43. — Mandibles of Phocoenidae unnamed genus 2 (UCMP 219076); A, dorsal view; B, left lateral view; C, right lateral view; D, oblique anterolateral view. Scale bar: 3 cm.	FIG. 43. — Mandibles of Phocoenidae unnamed genus 2 (UCMP 219076); A, dorsal view; B, left lateral view; C, right lateral view; D, oblique anterolateral view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF9C860C2794786AFB003FB0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538303/files/figure.png	http://doi.org/10.5281/zenodo.4538303	FIG. 44.— Interpretive line drawings of skull (UCMP 219503) and mandible (UCMP 219076) of Phocoenidae unnamed genus 2: A-D, skull in dorsal (A), ventral (B), right lateral (C) and left lateral (D) views;E, F, mandibles in left lateral (E) and dorsal (F) views.Scale bar:10 cm.	FIG. 44.— Interpretive line drawings of skull (UCMP 219503) and mandible (UCMP 219076) of Phocoenidae unnamed genus 2: A-D, skull in dorsal (A), ventral (B), right lateral (C) and left lateral (D) views;E, F, mandibles in left lateral (E) and dorsal (F) views.Scale bar:10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF9C860C2794786AFB003FB0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538307/files/figure.png	http://doi.org/10.5281/zenodo.4538307	FIG. 45. — Reconstruction of skull (UCMP 219503) and mandible (UCMP 219076) of Phocoenidae unnamed genus 2: A-C, skull in lateral (A), dorsal (B) and ventral (C) views; D, E, mandible in lateral (D) and dorsal (E) views. Scale bar: 10 cm.	FIG. 45. — Reconstruction of skull (UCMP 219503) and mandible (UCMP 219076) of Phocoenidae unnamed genus 2: A-C, skull in lateral (A), dorsal (B) and ventral (C) views; D, E, mandible in lateral (D) and dorsal (E) views. Scale bar: 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF81860824297968FBC23EBE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF81860824297968FBC23EBE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538309/files/figure.png	http://doi.org/10.5281/zenodo.4538309	FIG. 46.— Partial skull of cf.Phocoena (UCMP 219123):A, dorsal view; B, ventral view; C, right lateral view;D, interpretive line drawing in right lateral view; E, interpretive line drawing in dorsal view,with fossil mirrored. Gray shading on line drawing represents preserved portions, and dashed line represents unknown features. Scale bars: 3 cm.	FIG. 46.— Partial skull of cf.Phocoena (UCMP 219123):A, dorsal view; B, ventral view; C, right lateral view;D, interpretive line drawing in right lateral view; E, interpretive line drawing in dorsal view,with fossil mirrored. Gray shading on line drawing represents preserved portions, and dashed line represents unknown features. Scale bars: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF85860B25B07A6FFC783893.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538204/files/figure.png	http://doi.org/10.5281/zenodo.4538204	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as "?" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
03E7DD69FF85860B25B07A6FFC783893.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/4538311/files/figure.png	http://doi.org/10.5281/zenodo.4538311	FIG. 47. — Partial left squamosal of cf. Physeteroidea gen. et sp. indet. (UCMP 219108); A, lateral view; B, medial view; C, dorsal view. Scale bar: 3 cm.	FIG. 47. — Partial left squamosal of cf. Physeteroidea gen. et sp. indet. (UCMP 219108); A, lateral view; B, medial view; C, dorsal view. Scale bar: 3 cm.	2013-12-31	Boessenecker, Robert W.		Zenodo	biologists	Boessenecker, Robert W.			
