A late Campanian sphenodontid maxilla from northern Patagonia (Book, 2007) [WorldCat.org]
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A late Campanian sphenodontid maxilla from northern Patagonia

Author: Sebastián Apesteguía; Guillermo W Rougier
Publisher: New York, NY : American Museum of Natural History, ©2007.
Series: American Museum novitates, no. 3581.
Edition/Format:   Print book : EnglishView all editions and formats
Summary:
At the end of the early Cretaceous the once abundant sphenodontians vanished from the Laurasian record and were thought to have become virtually extinct, with the sole exception of Sphenodon, the living tuatara. Recent findings of large and abundant eilenodontine sphenodontids in the early late Cretaceous (Cenomanian-Turonian) and fragmentary material from other lineages from late Campanian outcrops of Patagonia,  Read more...
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Details

Material Type: Internet resource
Document Type: Book, Internet Resource
All Authors / Contributors: Sebastián Apesteguía; Guillermo W Rougier
OCLC Number: 171042986
Notes: Caption title.
"September 6, 2007."
Description: 11 pages : illustrations, map ; 26 cm.
Series Title: American Museum novitates, no. 3581.
Other Titles: Patagonian sphenodontid maxilla
Responsibility: Sebastián Apesteguía and Guillermo W. Rougier.

Abstract:

At the end of the early Cretaceous the once abundant sphenodontians vanished from the Laurasian record and were thought to have become virtually extinct, with the sole exception of Sphenodon, the living tuatara. Recent findings of large and abundant eilenodontine sphenodontids in the early late Cretaceous (Cenomanian-Turonian) and fragmentary material from other lineages from late Campanian outcrops of Patagonia, Argentina, have demonstrated that sphenodontids constituted an important component of the late Cretaceous terrestrial ecosystems in South America and possibly Gondwana. Although eilenodontine and possibly sapheosaurine sphenodontids are present in the late Cretaceous of Gondwana, they were only part of an unknown southern radiation. We report here on a new sphenodontid, Lamarquesaurus cabazai, n. gen. et sp., which is represented by an incomplete right maxilla that represents a previously unknown non-eilenodontine lineage and illustrates the diversity and role of sphenodontians in the tetrapod communities of the late Mesozoic of South America.

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