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                                       Details for article 5 of 7 found articles
 
 
  New Evidence for a Discrete Supratemporal Bone in the Jurassic Ichthyosaur Temnodontosaurus
 
 
Title: New Evidence for a Discrete Supratemporal Bone in the Jurassic Ichthyosaur Temnodontosaurus
Author: Maisch, Michael W.
Hungerbuhler, Axel
Appeared in: Historical biology
Paging: Volume 15 (2001) nr. 4 pages 335-345
Year: 2001
Contents: The temporal region in Temnodontosaurus trigonodon and Temnodontosaurus platyodon consists of three discrete ossifications. These bones are identified as the supratemporal, bordering much of the temporal opening, and in mid-cheek, the squamosal, which is in contact with the quadratojugal along its ventral margin. Interpretation of the bone in mid-cheek position as a neomorphic "supernumerary" ossification is rejected. The supratemporal bone of ichthyosaurs is functionally convergent with the squamosal of diapsids. The size and configuration of the supratemporal casts doubt on the supposition that ichthyosaurs were diapsids.
Publisher: Taylor & Francis
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details for article 5 of 7 found articles
 
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