Propatagium old and new (IMAGE)

University of Tokyo

Propatagium old and new

Caption

This comparison between theropod arms and bird wings shows how researchers think the propatagium allowed for different kinds of movement as the former evolved over millions of years into the latter.

Credit

©2023 Yurika Uno and Tatsuya Hirasawa CC-BY

Usage Restrictions

Credit must be given to the creator.

License

CC BY

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