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Showing results for tags 'leptomeryx'.
Opabinia Blues posted a topic in Fossil Hunting TripsI just got back from an amazing and very fruitful week of fossil collecting on the White River Formation in northeastern Colorado. The White River Formation is a very easy and fun rock unit to collect vertebrate fossils on. The White River Formation was deposited during the very latest Eocene and the early Oligocene, though the faunal diversity in the areas I was collecting on suggest it was laid down during the Orellan North American Land Mammal Age, which centers on around 33 million years ago during the Rupelian age of the Oligocene Epoch. I am very lucky to have a grand uncle
I'm looking for confirmation on this. I think it is Leptomeryx. The two occlusal views are the same but with different lighting. The other photos are labial and lingual views of the jaw. White River Group. Oligocene. Nebraska. Scale in cm/mm. Occlusal view not to scale. @Harry Pristis, @jpc, @Nimravis