Katie Potter

Deinonychus

Deinonychus antirrhopus Deinonychus antirrhopus was a velociraptorine dinosaur that, during the early Cretaceous, prowled the two continents that now make up North America. When the first Deinonychus fossils were discovered in 1969, paleontologist John Ostrum immediately recognized that the flexible wrist bones, long legs, scythe claws, and stiff tail suggested “an animal of great agility …

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