| |
| Chubutemys, a new eucryptodiran turtle from the early Cretaceous of Argentina, and the relationships of the Meiolaniidae ; American Museum novitates, no. 3599 |
| |||||||||||
| Download Problems | |
| Title: | Chubutemys, a new eucryptodiran turtle from the early Cretaceous of Argentina, and the relationships of the Meiolaniidae ; American Museum novitates, no. 3599 |
| Other Titles: | New eucryptodiran turtle |
| Authors: | Gaffney, Eugene S. Rich, Thomas H. V. Rich, Pat Vickers. Constantine, Andrew Eric, 1965- Vacca, Raul. Kool, Lesley. |
| Issue Date: | 2007 |
| Publisher: | New York, NY : American Museum of Natural History |
| Series/Report no.: | American Museum novitates, no. 3599 |
| Abstract: | "Chubutemys copelloi is the oldest nonmarine cryptodire from South America represented by a skull. The skull and associated postcranial fragments are from the Aptian Cerro CostaŠno Member of the Cerro Barcino Formation of Chubut, Argentina. Chubutemys has a processus trochlearis oticum, showing that it is a cryptodire, and an enclosed canalis caroticus internus extending to the posterior margin of the pterygoid, showing that it is a eucryptodire. The skull of Chubutemys is similar to that of other primitive eucryptodires, particularly Dracochelys, but also to Hangaiemys, Judithemys, Sinemys, and Ordosemys. Chubutemys differs from all these, however, in possessing a solidly roofed skull, formed by long, wide parietals, rather than a posterior emargination. Chubutemys also differs from these taxa in having no cheek emargination. A phylogenetic analysis using PAUP* analyzed 104 parsimony-informative characters resolving into one most parsimonious cladogram of 224 steps, a consistency inde... |
| Description: | 35 p. : ill., maps ; 26 cm. Includes bibliographical references (p. 28-30). |
| URI: | http://hdl.handle.net/2246/5895 |
| Department of Library Services
American Museum of Natural History Central Park West at 79th St., New York, NY 10024 © American Museum of Natural History, 2006 Powered by DSpace
|
||