The morphology of the terminal phalanges in Permo-Carboniferous synapsids: an evolutionary perspective

@article{Maddin2007TheMO,
  title={The morphology of the terminal phalanges in Permo-Carboniferous synapsids: an evolutionary perspective},
  author={H. C. Maddin and R. Reisz},
  journal={Canadian Journal of Earth Sciences},
  year={2007},
  volume={44},
  pages={267-274}
}
  • H. C. Maddin, R. Reisz
  • Published 2007
  • Geology
  • Canadian Journal of Earth Sciences
  • Morphological features of the terminal phalanges of extinct tetrapods can be used to infer whether or not keratinous claws were present even though these structures are not preserved in the fossil record. Such features as dense vascularization grooves and foramina, and a general claw-like morphology, are present in some of the earliest fully terrestrial tetrapods, the Permo-Carboniferous synapsids. Early synapsids are represented by a rich fossil record that preserves the detailed anatomy of… CONTINUE READING
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