wincman Posted November 5, 2018 Share Posted November 5, 2018 Another jaw fragment from the Brule Fm. of Dakota. Oreodont ?? Thanks. About 2 1/2 " long. Link to comment Share on other sites More sharing options...
jpc Posted November 5, 2018 Share Posted November 5, 2018 I think so Link to comment Share on other sites More sharing options...
PalaeoArt Posted November 5, 2018 Share Posted November 5, 2018 4 hours ago, jpc said: I think so Hey @jpc Just a thought, but wondering whether another option might be the lower jaw of a mesohippus (albeit the crowns are fairly worn down). The ridge of the side of the crown was the feature that draw me to that option. Link to comment Share on other sites More sharing options...
rfarrar Posted November 5, 2018 Share Posted November 5, 2018 I second the Mesohippus/Miohippus ID. Bob Link to comment Share on other sites More sharing options...
jpc Posted November 5, 2018 Share Posted November 5, 2018 let me check... I have a few minutes of down time til the end of the workday... Hmmmm... seems Scott and Jepsen do not have figures of the chewing surfaces of horses and oreodonts. Looking at an oreodont jaw, yeah, you might be right. Merycoidodon doesn't have such a strong cingulum. Beyond that, I amnot very familiar with horse lower jaws. Link to comment Share on other sites More sharing options...
jpc Posted November 5, 2018 Share Posted November 5, 2018 2 minutes ago, rfarrar said: I second the Mesohippus/Miohippus ID. Bob I'll go with what Bob says. he knows better. Link to comment Share on other sites More sharing options...
wincman Posted November 7, 2018 Author Share Posted November 7, 2018 Thanks again for sharing your expertise. Steve Link to comment Share on other sites More sharing options...
Nimravis Posted November 7, 2018 Share Posted November 7, 2018 I agree with Mesohippus Link to comment Share on other sites More sharing options...
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