Arundelconodon hottoni (ah-RUN-del-CONE-oh-don HOT-on-eye)

Arundelconodon belonged to an extinct lineage of mouse- to cat-sized mammals called triconodonts (tri-CONE-oh-donts), whose distinctive teeth are known from Cretaceous deposits around the world. It was the first Cretaceous mammal discovered in the eastern United States. The sharp, tall ridges on the Arundelconodon teeth suggest that this primitive mammal ate insects or other small animals.