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Side-necked turtle lower jaws (Podocnemididae, Bothremydidae) from the late Cretaceous Maevarano Formation of Madagascar. American Museum novitates ; no. 3397

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dc.contributor.author Gaffney, Eugene S. en_US
dc.contributor.author Forster, Catherine A. en_US
dc.date.accessioned 2005-10-06T16:39:31Z
dc.date.available 2005-10-06T16:39:31Z
dc.date.issued 2003 en_US
dc.identifier.uri http://hdl.handle.net/2246/2823
dc.description 13 p. : ill. ; 26 cm. en_US
dc.description Includes bibliographical references (p. 12-13). en_US
dc.description.abstract "Two lower jaws from the upper part (early Maastrichtian) of the late Cretaceous Maevarano Formation in the Mahajanga Basin, northwestern Madagascar, are identified as belonging to side-necked turtles (Pleurodira). A nearly complete lower jaw is identified as cf. Erymnochelys because of its close resemblance to the living Malagasy Erymnochelys madagascariensis. Both uniquely possess the combination of a posteriorly directed processus retroarticularis and a nearly identical triturating surface that is narrow anteriorly with a horizontal labial ridge and a dorsally rising lingual ridge. A second specimen, consisting of an incomplete symphyseal region, is questionably identified as Bothremydidae on the basis of a thick wedge-shaped symphysis with partial or complete pits on the rami. The cf. Erymnochelys specimen is the oldest record of Erymnochelys or a taxon very similar to it, and it indicates the persistence of a Mesozoic element in the extant Malagasy turtle fauna. The possible bothremydid jaw suggests a more cosmopolitan element now extinct"--P. [1]. en_US
dc.format.extent 408750 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York, NY : American Museum of Natural History en_US
dc.relation.ispartofseries American Museum novitates ; no. 3397 en_US
dc.subject.lcc QL1 .A436 no.3397, 2003 en_US
dc.subject.lcsh Turtles, Fossil -- Madagascar -- Mahajanga (Province) en_US
dc.subject.lcsh Mandible. en_US
dc.subject.lcsh Reptiles, Fossil -- Madagascar -- Mahajanga (Province) en_US
dc.subject.lcsh Paleontology -- Cretaceous -- Madagascar -- Mahajanga (Province) en_US
dc.subject.lcsh Paleontology -- Madagascar -- Mahajanga (Province) en_US
dc.title Side-necked turtle lower jaws (Podocnemididae, Bothremydidae) from the late Cretaceous Maevarano Formation of Madagascar. American Museum novitates ; no. 3397 en_US
dc.title.alternative Sidenecked turtle lower jaws en_US
dc.type text en_US


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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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