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Baryonyx is one of the more complete theropods from the UK. While initially assumed to have more carnosaurian proportions, once the bones were freed from their incredibly difficult rock matrix and described it was clear Baryonyx was a spinosaurid, a group of fish-eating megalosaurs with long, crocodile-like snouts, conical teeth, and large hooked thumb claws. The subadult specimen had gut contents, including fish scales and, more surprisingly, elements that probably belonged to a young iguanodont. So while spinosaurid anatomy suggests adaptations for fish eating, their diets may have remained opportunistic and highly variable.
