アメリカ自然史博物館のインスタグラム(amnh) - 6月4日 00時06分

It’s a tiny, toothy ‪#FossilFriday!
Crocs today are mostly aquatic animals, but many early crocodylomorphs—the group that includes living crocs and their extinct relatives—were small animals that lived on land. Many of the early crocodylomorphs were small, terrestrial hunters. Hoplosuchus kayi was a tiny (approximately 8 inches), graceful croc that lived about 140 million years ago in Utah. Its long legs were built for running and its needle-like teeth were probably adapted to eating insects, lizards, and other small animals. This remarkable fossil may be the only one known for the species.
See a cast of this fossil in the new exhibition, Crocs: Ancient Predators in a Modern World, now open!
Image: © Carnegie Museum of Natural History

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