.31" Fossil Crow Shark (Squalicorax) Tooth - Texas

Squalicorax would have had a body type very similar to today's grey sharks, but the teeth most closely resemble that of tiger sharks. It was likely a coastal predator, but there is evidence it was also a scavenger: a Squalicorax tooth was found embedded on the bone of a hadrosaur. Hadrosaurs were terrestrial dinosaurs, so that hadrosaur likely had died on land before being swept out to sea.