Article thumbnail

Eunotosaurus africanus and the Gondwanan ancestry of anapsid reptiles

By Sean Patrick Modesto

Abstract

Phylogenetic analyses confirm that the turtle-like Late Permian reptile Eunotosaurus africanus is a parareptile (sensu deBraga & Reisz 1996) and identify it as the sister taxon of Procolophonomorpha. The tree topology for anapsid reptiles suggests that a distribution in Gondwanan Pangaea is ancestral for anapsids {sensu Gauthier, Kluge & Rowe 1988). Minimum divergence times (MDTs) determined from stratigraphic calibration of anapsid phylogeny suggest that anapsids were diversifying in Early Permian Gondwana as early as the Sakmarian. MDTs also support the idea that a preservational bias was operating on terrestrial vertebrates in Gondwana prior to the onset of continental sedimentation in the Late Permian

Topics: Anapsida, Eunotosaurus, Gondwana, palaeobiogeography, parareptiles
Year: 1947
OAI identifier: oai:CiteSeerX.psu:10.1.1.1025.4488
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://wiredspace.wits.ac.za/b... (external link)
  • http://wiredspace.wits.ac.za/b... (external link)
  • http://citeseerx.ist.psu.edu/v... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.