Skip to main content

A well-preserved skull of Qianichthyosaurus zhoui LI, 1999 (Reptilia: Ichthyosauria) from the Upper Triassic of China and the phylogenetic position of the Toretocnemidae

Buy Article:

$39.00 plus tax (Refund Policy)


A well-preserved skull and mandible of the toretocnemid ichthyosaur Qianichthyosaurus zhoui LI, 1999 is described from the Upper Triassic Wayao Member of the Falang Formation (Carnian) of Guanling County, Guizhou Province, southwestern China. It allows substantial additions to the knowledge of the cranial osteology of this taxon and the rectification of previous misinterpretations, particularly of the temporal region. Qianichthyosaurus shows numerous similarities to the mixosaurids in its cranial skeleton, particularly with regard to the temporal region, skull proportions and dentition, although it lacks some key features of the family, such as continuous supranarial and supraorbital crests or a high saggital crest on nasal, frontal and parietal. Nevertheless, there is some evidence that the jaw muscles were arranged similarly to the mixosaurids. The similarities in cranial osteology, together with some remarkably plesiomorphic features of the postcranial skeleton, suggest, that the Toretocnemide may not be the sister-group of the Longipinnati, as previously proposed, but may be closely related to the Mixosauridae instead, developing the basically tridactylous fin pattern independently of other longipinnate ichthyosaurs.


Document Type: Research Article


Publication date: 2008-06-01

More about this publication?
  • Neues Jahrbuch für Geologie und Paläontologie continuously publishes current original contributions from all fields of geology, ever since its foundation in 1807. All published contributions are in the English language.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more