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New material of the enigmatic reptile Khurendukhosaurus (Diapsida: Choristodera) from Mongolia.

Authors
  • Matsumoto, Ryoko
  • Suzuki, Shigeru
  • Tsogtbaatar, Khisigjav
  • Evans, Susan E
Type
Published Article
Journal
Die Naturwissenschaften
Publication Date
Feb 01, 2009
Volume
96
Issue
2
Pages
233–242
Identifiers
DOI: 10.1007/s00114-008-0469-6
PMID: 19034405
Source
Medline
License
Unknown

Abstract

New material of the enigmatic diapsid Khurendukhosaurus is described from the Mongolian type locality, Khuren Dukh, providing additional data on the vertebral column, pelvis, and hind limb. It confirms the choristoderan status of the genus and permits a more detailed phylogenetic analysis that supports a relationship between Khurendukhosaurus and the long-necked Asian Hyphalosauridae. The existence of tall caudal neural spines implies that Khurendukhosaurus was a deep-tailed swimmer. This and the open sacral costocentral sutures suggest a primarily aquatic lifestyle.

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