Behavioral evidence for the evolution of walking and bounding before terrestriality in sarcopterygian fishes

  title={Behavioral evidence for the evolution of walking and bounding before terrestriality in sarcopterygian fishes},
  author={Heather M. King and Neil H. Shubin and Michael I. Coates and Melina E. Hale},
  journal={Proceedings of the National Academy of Sciences},
  pages={21146 - 21151}
Tetrapods evolved from sarcopterygian fishes in the Devonian and were the first vertebrates to colonize land. The locomotor component of this transition can be divided into four major events: terrestriality, the origins of digited limbs, solid substrate-based locomotion, and alternating gaits that use pelvic appendages as major propulsors. As the sister group to tetrapods, lungfish are a morphologically and phylogenetically relevant sarcopterygian taxon for understanding the order in which… 

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