Prehistoric Animals

Prehistoric (other than dinosaurs) animals' fossilized skeletons in natural history museums: saber-tooth tiger, giant sloth, prehistoric horses, camels, rhinos, mastodon, dolphin, sea turtle

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Prehistoric animal skeleton: Sea turtle, protostega gigas, is an ancient relative of today's sea turtles. Late Cretaceous Period, 85 million years ago, found in Niobrara Chalk, Lane County, Kansas. Denver Museum of Nature and Science, Denver, Colorado December 2005.

sea turtle protostega gigas cretaceous niobrara chalk lane county kansas denver museum of nature and science colorado prehistoric animal prehistoric animal skeleton fossil museum natural science nature natural science history natural history