Evolution of Fish-Shaped Reptiles (reptilia: Ichthyopterygia) in Their Physical Environments and Constraints

@article{Motani2005EvolutionOF,
  title={Evolution of Fish-Shaped Reptiles (reptilia: Ichthyopterygia) in Their Physical Environments and Constraints},
  author={R. Motani},
  journal={Annual Review of Earth and Planetary Sciences},
  year={2005},
  volume={33},
  pages={395-420}
}
  • R. Motani
  • Published 2005
  • Biology
  • Annual Review of Earth and Planetary Sciences
  • ▪ Abstract Ichthyosaurs were a group of Mesozoic marine reptiles that evolved fish-shaped body outlines. They are unique in several anatomical characters, including the possession of enormous eyeballs sometimes exceeding 25 cm and an enlarged manus with sometimes up to 20 bones in a single digit, or 10 digits per manus. They are also unique in that their biology has been studied from the perspective of physical constraints, which allowed estimation of such characteristics as optimal cruising… CONTINUE READING
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