Olenellus Posted February 3, 2012 Share Posted February 3, 2012 Paleo Friends A catastrophic volcanic eruption in the Great Basin of the United States buried millions of Oligocene mammals, birds, insects, plants, and other life forms in ash. It was a tragic event that left a magnificent record in the rocks of Oregon, South Dakota, Nebraska, and other states. The mammal jaws shown below exhibit only two creatures of this period Mesohippus (an ancient horse) and Merycoidodon (an oreodont). I will post my John Day Fossils, the plant counterpart of this Oligocene disaster, at a later date. The Brule Formation Mammal jaws shown below are the same age as the John Day Plant fossils that my daughter and I collected before that site became a national park. ---- Ammonite Olenellus Link to comment Share on other sites More sharing options...
Bill Posted February 3, 2012 Share Posted February 3, 2012 Very nice specimens. KOF, Bill. Welcome to the forum, all new members www.ukfossils check it out. Link to comment Share on other sites More sharing options...
kolleamm Posted February 4, 2012 Share Posted February 4, 2012 ahh oredonts very nice Link to comment Share on other sites More sharing options...
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