Zangerlia ukhaachelys, new species, a nanhsiungchelyid turtle from the late Cretaceous of Ukhaa Tolgod, Mongolia. American Museum novitates ; no. 3481

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dc.contributor.author Joyce, Walter G.
dc.contributor.author Norell, Mark
dc.date.accessioned 2006-01-12T17:56:40Z
dc.date.available 2006-01-12T17:56:40Z
dc.date.issued 2005
dc.identifier.uri http://hdl.handle.net/2246/5672
dc.description 19 p. : ill. ; 26 cm. en
dc.description Includes bibliographical references (p. 15-16). en
dc.description.abstract "The late Cretaceous continental deposits of Ukhaa Tolgod, Mongolia, have yielded remains of a new nanhsiungchelyid turtle, Zangerlia ukhaachelys, n.sp. This taxon is based on a single individual that consists of a partial cranium, representatives of all peripherals, an almost complete plastron, and limb fragments. Zangerlia ukhaachelys is diagnosed as a new taxon by the presence of an anteromedial process of the hyoplastron that reduces the typical contact of the entoplastron with the epiplastron. Phylogenetic analysis firmly places Zangerlia ukhaachelys as sister to Zangerlia testudinimorpha and Zangerlia neimongolensis within Nanhsiungchelyidae and confirms the close phylogenetic relationships between Nanhsiungchelys wuchingensis and Anomalochelys angulata and among all North American representatives of Basilemys. In addition, there is modest support that all Asian representatives of Nanhsiungchelyidae form a monophyletic clade, which is primarily diagnosed by a deep, triangular nuchal notch. From a biogeographic standpoint, it is evident that the late Cretaceous faunas of Asia and North America are closely related; however, phylogenetic considerations demonstrate that faunal exchange was limited for the Nanhsiungchelyidae"--P. [1]. en
dc.format.extent 609660 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher New York, NY : American Museum of Natural History en
dc.relation.ispartofseries American Museum novitates ; no. 3481 en
dc.subject.lcc QL1 .A436 no.3481, 2005 en
dc.subject.lcsh Zangerlia ukhaachelys. en
dc.subject.lcsh Turtles, Fossil -- Mongolia -- Ukhaa Tolgod. en
dc.subject.lcsh Reptiles, Fossil -- Mongolia -- Ukhaa Tolgod. en
dc.subject.lcsh Paleontology -- Cretaceous -- Mongolia -- Ukhaa Tolgod. en
dc.subject.lcsh Paleontology -- Mongolia -- Ukhaa Tolgod. en
dc.subject.lcsh Turtles -- Phylogeny. en
dc.subject.lcsh Turtles -- Dispersal. en
dc.title Zangerlia ukhaachelys, new species, a nanhsiungchelyid turtle from the late Cretaceous of Ukhaa Tolgod, Mongolia. American Museum novitates ; no. 3481 en
dc.title.alternative Late Cretaceous turtle en
dc.type text en

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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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