Sea Monsters: A Prehistoric Adventure

Wednesday, September 16, 2026

Sea Monsters: A Prehistoric Adventure transports the audience back to the Late Cretaceous, when a great inland sea divided North America. A curious and adventuresome dolichorhynchops travels through the most dangerous oceans in history, encountering long-necked plesiosaurs, giant turtles, enormous fish, fierce sharks, and the most dangerous sea monster of all, the mosasaur.

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About OMSI

1945 SE Water Ave, Portland, OR 97214

Closed now

• Opens 9:30 AM

omsi.edu

+1 503-797-4000

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