Talk:Leptosuchus

	Leptosuchus is part of WikiProject Amphibians and Reptiles, an effort to make Wikipedia a standardized, informative, comprehensive and easy-to-use resource for amphibians and reptiles. If you would like to participate, you can choose to edit this article, or visit the project page for more information.Amphibians and ReptilesWikipedia:WikiProject Amphibians and ReptilesTemplate:WikiProject Amphibians and Reptilesamphibian and reptile articles
Low	This article has been rated as Low-importance on the project's importance scale.

Update to Leptosuchus

Latest comment: 14 years ago1 comment1 person in discussion

Stocker (2010) has demonstrated that Leptosuchus is paraphyletic, with L. adamanensis, L. gregorii, and L. lithodendrorum closer to Pseudopalatinae than to Leptosuchus crosbiensis, the type species of Leptosuchus. She resurrects Smilosuchus for L. gregorii and refers L. lithodendrorum and L. adamanensis to Smilosuchus. Additionally, Leptosuchus studeri is recovered as the sister species of L. crosbiensis, while Phytosaurus doughtyi and "Machaeroprosopus" zunii are part of an unresolved polytomy (including Leptosuchus, Smilosuchus, Pravusuchus, and Pseudopalatinae). Also, Leptosuchus imperfecta is not referrable to adamanensis. The analysis of Stocker (2010) also refutes the possibility that Rutiodon is congeneric with Angistorhinus and finds no evidence to refer Leptosuchus or Smilosuchus to Rutiodon. Thus, Leptosuchus is known only from the Dockum Group in Texas, while Smilosuchus is known only from the Chinle Formation of Arizona and Rutiodon is known only from the eastern US.

Michelle R. Stocker (2010). "A new taxon of phytosaur (Archosauria: Pseudosuchia) from the Late Triassic (Norian) Sonsela Member (Chinle Formation) in Arizona, and a critical reevaluation of Leptosuchus Case, 1922". Palaeontology 53 (5): 997-1022.68.4.61.237 (talk) 01:23, 29 September 2010 (UTC)Vahe DemirjianReply

Add topic