The affinities and ecology of Triassic ichthyosaurs

  title={The affinities and ecology of Triassic ichthyosaurs},
  author={Judy A. Massare and J. M. Callaway},
  journal={Geological Society of America Bulletin},
  • Judy A. Massare, J. M. Callaway
  • Published 1990
  • Geology
  • Geological Society of America Bulletin
  • The resolution of the problem of ichthyosaurian affinities has been complicated and prolonged by an emphasis on the morphology of Jurassic ichthyosaurs, some 30 to 40 m.y. younger than the earliest known species. Morphology of the skull and axial skeleton of Triassic ichthyosaurs is the key to resolving the problem. The ichthyosaurs are included here in the Subclass Diapsida on the basis of skull roof and palatal features. Within the Diapsida, ichthyosaurs appear to be most closely related to… CONTINUE READING
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