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Today’s #FossilFriday - a tribute to Minnesota’s Cretaceous rocks and one of its earliest fossil finds: Terminonaris robusta (originally classified as Teleorhinus). A partial snout of Terminonaris was excavated in 1969 at the Hill Annex Mine, Calumet, MN.

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The excerpt here was published in a 1983 article in Minnesota Conservation Volunteer and features some wonderful vintage paleoart by Ken Sander. #Cretaceous #Minnesota #Crocodile #Terminonarusrobusta #Palaeontology #CitizenScience Hill Annex Paleontology Project: https://www.facebook.com/groups/373774663482849 More Lost Bones: https://medium.com/@dbrake40 Snout of Terminonaris robusta found at Hill Annex Mine. Contrary to the internet these days, Minnesota does have fossiliferous Cretaceous formations - and yes, even dinosaurs. The major formations, the Windrow in southern Minnesota and the Coleraine in northern Minnesota, are indeed present, though mostly buried well beneath the surface. But iron mining on Minnesota’s Mesabi Range has done some digging for us.
July 11, 2025 at 11:51 PM