Cretaceous mammal jaw with teeth, Hell Creek Formation, Garfield County, Montana

Partial lower mandible with teeth of a rare, unidentified mammal from the dinosaur-age. Collected by myself in the Hell Creek Formation, with Jason Phipps on his ranch, in July 2023. Cretaceous mammal fossils are rare when compared with abundant dinosaur remains and jaws with teeth are very special indeed! From Garfield County, southwest of Jordan, Montana. Dimensions: 0.6 cm x 1 cm