Earliest zygodactyl bird feet: evidence from Early Cretaceous roadrunner-like tracks

@article{Lockley2007EarliestZB,
  title={Earliest zygodactyl bird feet: evidence from Early Cretaceous roadrunner-like tracks},
  author={M. Lockley and Ri-hui Li and Jerald D. Harris and M. Matsukawa and Mingwei Liu},
  journal={Naturwissenschaften},
  year={2007},
  volume={94},
  pages={657-665}
}
Fossil footprints are important in understanding Cretaceous avian diversity because they constitute evidence of paleodiversity and paleoecology that is not always apparent from skeletal remains. Early Cretaceous bird tracks have demonstrated the existence of wading birds in East Asia, but some pedal morphotypes, such as zygodactyly, common in modern and earlier Cenozoic birds (Neornithes) were unknown in the Cretaceous. We, herein, discuss the implications of a recently reported, Early… Expand
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