Some unknown mammalian mandible

[real_Ryan]

The fossils, some of which are believed to come from Oligocene strata in South Dakota, were found in a box.

 

Please help identify. Thank you very much.

[jpc]

These are not from the Oligocene of South Dakota.   Color is wrong , matrix is wrong.  

 

edit:  and based on the size, (which is based on the texture in the paper towels) there are no artiodactyls this big in the White River

Edited July 2, 2022 by jpc

[real_Ryan]

17 hours ago, jpc said:

这些不是来自南达科他州的渐新世。颜色错误，矩阵错误。  

 

编辑：根据大小，（根据纸巾的质地）白河里没有这么大的偶蹄类动物

Thank you very much. You're right. Upon inquiry, the animals came from the Early Pleistocene in northern China.