. Bulletin - American Museum of Natural History. Natural history; Science. 1906.] Hay^ New Genera and Species of Fossil Turtles. 29 Cope, also Entys cihollensis Cope and Emys lativertehralis Cope, both of the Wasatch beds of New Mexico. Xenochelys, gen. no v. A genus of Dermatemydidae. Neurals six, the anterior four having the narrow end in front. Costals seven pairs, those of the sixth and seventh pairs meeting in the midline above. Plastron joining the carapace without interven- tion of buttresses. Only five pairs of plastral epidermal scutes. Two infra- marginals on each bridge. Type, X. fo
. Bulletin - American Museum of Natural History. Natural history; Science. 1906.] Hay^ New Genera and Species of Fossil Turtles. 29 Cope, also Entys cihollensis Cope and Emys lativertehralis Cope, both of the Wasatch beds of New Mexico. Xenochelys, gen. no v. A genus of Dermatemydidae. Neurals six, the anterior four having the narrow end in front. Costals seven pairs, those of the sixth and seventh pairs meeting in the midline above. Plastron joining the carapace without interven- tion of buttresses. Only five pairs of plastral epidermal scutes. Two infra- marginals on each bridge. Type, X. formosa, of the Oligocene. Xenochelys fonnosa, sp. no v. This species is based on a nearly complete shell which was dis- covered in 1904, at Quinn Draw, Washington County, South Dakota, by Mr. Albert Thomson, of the American Museum of Natural History. The deposits from which it was taken belong to the lower Titano- therium beds, of the White River formation. The length of the carapace (Figure 2) is 200 mm., the width, 129 mm. There is a low median carina on the nuchal and again on the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Museum of Natural History; Allen, J. A. (Joel Asaph), 1838-1921. New York [American Museum of Natural History]
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