<I>Troodon formosus</I> (IMAGE)

American Museum of Natural History

<I>Troodon formosus</I>

Caption

Like other meat-eaters analyzed in the new research, Troodon formosus, a coelurosaur, maintained a stable level of biodiversity leading up to the mass extinction at the end of the Cretaceous.

Credit

AMNH/J. Brougham

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