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https://www.popsci.com/science/dinosaur-fossil-auction/
A 1,000-pound geode, mosasaur skeleton, and head to auction | Popular Science
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https://www.nhm.ac.uk/discover/what-is-a-mosasaur.html
What is a mosasaur? Facts about Mosasaurus and its relatives | Natural History Museum
What is Mosasaurus? Is a mosasaur a dinosaur? Find out all about these ancient ocean predators.
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https://www.earth.com/news/mosasaur-tooth-found-in-north-dakota-will-force-a-rewrite-of-the-sea-monster-textbooks/
Mosasaur tooth in North Dakota shows these giants lived in rivers - Earth.com
A surprising fossil find shows that some mosasaurs lived in ancient rivers as oceans changed near the end of the Cretaceous.
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