Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
Bulletin de la Societe Geologique de France Don't get GSW? Talk to your librarian.
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Bulletin de la Societe Geologique de France; September 2005; v. 176; no. 5; p. 467-473; DOI: 10.2113/176.5.467
© 2005 Societe Geologique de France
This Article
Right arrow Résumé
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Web of Science (2)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Buffetaut, E.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

A new sauropod dinosaur with prosauropod-like teeth from the Middle Jurassic of Madagascar

Eric Buffetaut1

1 CNRS (UMR 5125, Paléoenvironnements et Paléobiosphère), 16 cour du Liégat, 75013 Paris, France.

A dentary bone containing several teeth, from the Middle Jurassic (Bathonian) of northwestern Madagascar is described as the type of a new sauropod dinosaur taxon, Archaeodontosaurus descouensi, n.g., n.sp. This taxon is characterised by the unusual combination of a dentary with a deep anterior part, as in advanced sauropods, and teeth with large serrations and a convex lingual side, which resemble the teeth of prosauropods. A more common pattern in early sauropods is the combination of a low, prosauropod-like dentary and spoon-shaped, sauropod-like teeth. Although the condition in Archaeodontosaurus descouensi strongly suggests that basal sauropods had prosauropod-like teeth, what is known of the jaw and dentition in various early and middle Jurassic sauropods indicates mosaic evolution along different paths during the early diversification of the group. Archaeodontosaurus descouensi differs from Jurassic sauropod material from Madagascar, previously described as Bothriospondylus and Lapparentosaurus, which needs revision. It appears that at least two distinct sauropods, with different tooth morphologies, are present in the Middle Jurassic of Madagascar.

Key Words: Dinosauria • Sauropoda • Middle Jurassic • Madagascar






JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Societe Geologique de France