<i>Xilousuchus sapingensis</i> fossil (IMAGE)

University of Washington

<i>Xilousuchus sapingensis</i> fossil

Caption

This drawing depicts the skull and 10 neck vertebrae from the fossil of an archosaur called Xilousuchus sapingensis. The elongated spines on rearward vertebrae indicate the presence of a "sail" on the animal's back.

Credit

Sterling Nesbitt

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