The compsognathus was a type of theropod dinosaur. They were small, no larger than a turkey, and were mainly scavengers.

The compsognathus was one of the species that the Silurians brought back from extinction after they took over in a parallel world. Compsognathuses would scavenge from the humans and their settlements. While searching for medicine in 1993, Ace, Benton, Jan, Julia and Alan were followed by a compsognathus, which Ace unofficially adopted as a mascot and named after Benton. She later chased it off after it was found scavenging one of their dead horses. (PROSE: Blood Heat)

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