Ischyrocyon canvas Ischnacanthus Quetzalcoatlus was the largest animal

Quetzalcoatlus was the largest animal ever to have soared the skies

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the spiky-headed ceratopsian dinosaur from the Cretaceous Period

Ischyrocyon canvas Ischnacanthus Quetzalcoatlus was the largest animalA lone Ischyrocyon patrols a dry prairie at the foot of the Rockies aboutn 11 million years ago. Ischyrocyon was an amphicyonid, or bear dog, an extinct family of carnivorous mammals that formed an early branch of the lineage including dogs and bears, as well as racoons, weasels, and seals among others.