mikeymig Posted March 9, 2018 Share Posted March 9, 2018 I bought this jaw at a fossil show and the only info that came with it was "Badlands USA". The matrix looks Miocene Arikaree to me and not Oligocene but I'm not sure of course. Any information from a mammal/tooth collector will be appreciated. I have an idea of what it might be but I don't want to say anything until I hear from you all. Thanks, Mikey Many times I've wondered how much there is to know. led zeppelin Link to comment Share on other sites More sharing options...
mikeymig Posted March 9, 2018 Author Share Posted March 9, 2018 Many times I've wondered how much there is to know. led zeppelin Link to comment Share on other sites More sharing options...
MeargleSchmeargl Posted March 9, 2018 Share Posted March 9, 2018 Looks mammal. Beyond that I haven't much of a clue. Every single fossil you see is a miracle set in stone, and should be treated as such. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted March 9, 2018 Share Posted March 9, 2018 Looks typical Oligocene Badlands to me. Perhaps Leptomeryx? And i seem ti have missed the title word "Big" ooopps Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
mikeymig Posted March 9, 2018 Author Share Posted March 9, 2018 3 minutes ago, Tidgy's Dad said: Looks typical Oligocene Badlands to me. Perhaps Leptomeryx? It would be the largest Leptomeryx in the world. 1 Many times I've wondered how much there is to know. led zeppelin Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted March 9, 2018 Share Posted March 9, 2018 Oh, yes, forgot to look at your scale bar in the bottom pic! Hmmmm Got too excited looking at the top ones and foolishly thinking, "I know this!" 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
BMoore Posted March 9, 2018 Share Posted March 9, 2018 Based on the first and last images I would guess Hyracodon from White River. Link to comment Share on other sites More sharing options...
mikeymig Posted March 9, 2018 Author Share Posted March 9, 2018 12 minutes ago, BMoore said: Based on the first and last images I would guess Hyracodon from White River. Thank you for the reply but I'm thinking more likely an artiodactyl not a perissodactyl. Many times I've wondered how much there is to know. led zeppelin Link to comment Share on other sites More sharing options...
ynot Posted March 9, 2018 Share Posted March 9, 2018 @Harry Pristis may know. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 9, 2018 Share Posted March 9, 2018 Or @jpc Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
rfarrar Posted March 9, 2018 Share Posted March 9, 2018 Mike, I think this is one of the large Miocene oreodonts. Something like Merycochoerus... Link to comment Share on other sites More sharing options...
jpc Posted March 9, 2018 Share Posted March 9, 2018 Well, I can say this with great confidence: It is right m2 and m3. I am leaning towards a big Miocene oreo as well. The preservation is quite Miocene-ish from this area. I am comparing with a culbertsoni jaw in my grubby mitts and these two pieces of enamel I see in the mystery jaw are different enough. I am not sure what oreodont jaws do going into the Miocene... do they develop an enamel ridge right here on m2? Anyone have a copy of Schultz and Falkenbach laying around? edit: Schultz and Falkenbach is available as a pdf online. No oreodonts have an extra bit of enamel where this guy does. Maybe those are broken pieces that got squished into the tooth. I am still going with a large Miocene oreodont... for now edit2: The pointed cusps on m3, two of them to the left of my lower green square seem too thick to be oreodont.... camel? OK, I am now going with Artiodactyl. That's all. 3 Link to comment Share on other sites More sharing options...
mikeymig Posted March 11, 2018 Author Share Posted March 11, 2018 Thanks for the info so far. Maybe from this guy in my collection? 1 Many times I've wondered how much there is to know. led zeppelin Link to comment Share on other sites More sharing options...
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