Righteous Posted January 14, 2020 Share Posted January 14, 2020 What are these called and age? They came from Mississippi and I was told they were from jurassic period Link to comment Share on other sites More sharing options...
Carl Posted January 14, 2020 Share Posted January 14, 2020 I'm thinking Cretaceous is more likely. They look like the oyster Pycnodonte. 1 Link to comment Share on other sites More sharing options...
Righteous Posted January 14, 2020 Author Share Posted January 14, 2020 Ok then that would make them come after the dinosaur era. Link to comment Share on other sites More sharing options...
thelivingdead531 Posted January 14, 2020 Share Posted January 14, 2020 1 hour ago, Righteous said: Ok then that would make them come after the dinosaur era. The Cretaceous period was the last period of the mesozoic era, so still Dino territory. 1 Link to comment Share on other sites More sharing options...
martwad Posted January 14, 2020 Share Posted January 14, 2020 3 hours ago, Righteous said: Ok then that would make them come after the dinosaur era. Cretaceous is arguably the most famous of the dinosaur eras. The asteroid impact ended the Cretaceous. 1 Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted January 14, 2020 Share Posted January 14, 2020 6 hours ago, Righteous said: Ok then that would make them come after the dinosaur era. Dinosaurs went extinct at the end of the Cretaceous, 65mya (million years ago). Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
FossilDAWG Posted January 15, 2020 Share Posted January 15, 2020 Northern Mississippi has a lot of Upper Cretaceous. These shells look like Pycnodonte mutabilis, which is abundant in some of the chalk formations. There is no exposed Jurassic in Mississippi or anywhere along the Gulf Coast. You can find Jurassic strata deep in the subsurface, buried under kilometers of Teriary and Cretaceous sediments. Don Link to comment Share on other sites More sharing options...
Righteous Posted January 15, 2020 Author Share Posted January 15, 2020 1 hour ago, FossilDAWG said: Northern Mississippi has a lot of Upper Cretaceous. These shells look like Pycnodonte mutabilis, which is abundant in some of the chalk formations. There is no exposed Jurassic in Mississippi or anywhere along the Gulf Coast. You can find Jurassic strata deep in the subsurface, buried under kilometers of Teriary and Cretaceous sediments. Don Gentlemen said you could pick up hundreds of these on the roadside somewhere. Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted January 15, 2020 Share Posted January 15, 2020 18 hours ago, Righteous said: Gentlemen said you could pick up hundreds of these on the roadside somewhere. Most probably from roadcuts where the appropriate formation(s) is exposed. In some places fossils are so plentiful you can't take a step without stepping on one or more, and this is especially true in the case of marine fossils. Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
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