A remarkable specimen has been discov-ered of an Early Cretaceous pterosaur that has a tooth embedded in one of its cervical vertebrae: the tooth has been identified as one from a spinosaurid thero-pod dinosaur. This fossil is direct evidence that spinosaurs included items other than fish in their diet. The diet of spinosaurid theropods such as Baryonyx and Spinosaurus has been the subject of speculation. Their peculiar elongated jaws, sinuous tooth row and crocodile-like teeth suggest that they were piscivores, a habit supported by the discovery of Lepidotes scales etched by gastric juices within the body cavity of the type specimen of Baryonyx walkeri, from the Wealden of Britain. However, bones of a juvenile Iguanodon were also associated with the specimen, suggesting that Baryonyx might not have been exclusively a fish-eater. Baryonyx may also have been a scavenger. Still, until now there has been no direct evidence to indicate what the diet of other spinosaurs could have been.
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