Open AccessTwo new basal crocodylomorph archosaurs from the Lower Jurassic and the monophyly of the Sphenosuchia
Author(s) -
Clark James M.,
Sues HansDieter
Publication year - 2002
Publication title -
zoological journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.148
H-Index - 83
eISSN - 1096-3642
pISSN - 0024-4082
DOI - 10.1046/j.1096-3642.2002.00026.x
Subject(s) - biology , monophyly , paleontology , basal (medicine) , canyon , taxon , zoology , phylogenetic tree , clade , geology , biochemistry , gene , insulin , endocrinology , geomorphology
We report on and name two new taxa of basal crocodylomorph archosaurs from the Lower Jurassic, Litargosuchus leptorhynchus gen. et sp. nov. , from the upper Elliot Formation (Stormberg Group) of South Africa, and Kayentasuchus walkeri gen. et sp. nov. , from the Kayenta Formation (Glen Canyon Group) of Arizona, USA. Examination of this material led to a reconsideration of basal crocodylomorph interrelationships. A phylogenetic analysis found no support for the monophyly of Sphenosuchia. © 2002 The Linnean Society of London. Zoological Journal of the Linnean Society , 2002, 136 , 77–95.