Cimolestes sp. mammal tooth canine
Hell creek fm
each fossil was identify by dinosaur paleontologist
Fossil mammal tooth Cimolestes sp.
size: 2 cm canine
restoration: NO restorations
from Wikipedia resources: Cimolestes ("Bug Thief") is a genus of basal, non-placental eutherians. Fossils have been found in North America, where they first appeared during the Late Cretaceous; they died out at the start of the Paleocene. They were once considered to be marsupials, then primitive placental mammals, but now are considered to be members of the order Cimolesta (which was named after the genus), outside of placental mammals proper
Richard C. Fox (2015) A revision of the Late Cretaceous–Paleocene eutherian mammal Cimolestes Marsh, 1889. Canadian Journal of Earth Sciences (advance online publication) doi: 10.1139/cjes-2015-0113 http://www.nrcresearchpress.com/doi/abs/10.1139/cjes-2015-0113?src=recsys#.VkAcsrerTcs