This is the "Fossil Friday" post #45. Expect this to be a somewhat regular feature of the website. We will post any fossil pictures you send in to [email protected]. Please include a short description or story. Check the #FossilFriday Twitter hash tag for contributions from around the world!
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We have another mollusk this week. This one is nautilus called Eutrephoceras from the Bearpaw Formation in Montana. It was collected by ESCONI President Keith Robitschek... very nice fossil, Keith! These animals existed from the Hell Creek Period about 161 to Miocene around 5 million years ago.