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The Dinosaurs and Prehistoric Animals of Oregon


No dinosaurs have ever been discovered in Oregon, a state that's better known for its ancient marine animals, as listed below. (See an interactive map of dinosaurs and prehistoric animals in the United States.)

1. Aetiocetus

Nobu Tamura
The most notable prehistoric animal ever to be discovered in Oregon, Aetiocetus was a 25-million-year-old whale ancestor that possessed both fully developed teeth and plates of baleen. Clearly, Aetiocetus fed mostly on fish, but also supplemented its diet with healthy servings of near-microscopic plankton and other invertebrates. More about prehistoric whales

2. Plesiosaurs and Ichthyosaurs

Dmitri Bogdanov
Oregon is a frustrating place for paleontologists: this state has yielded numerous, fragmentary remains of plesiosaurs and ichthyosaurs (large, toothy marine reptiles of the Mesozoic era), but very few individuals that can be assigned to specific genera. One day, hopefully, Oregon can lay claim to its very own (named) marine reptile!
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