👉 Sphenodontia is a group of extinct mammals from the Late Cretaceous period that lived in Europe. The term "sphenodontia" comes from Greek, which translates to "black" or "dark". These animals are known for their distinctive black fur and large, flat bones. They were thought to have been herbivores but were later found to be omnivorous. Sphenodontia is one of the most diverse groups of mammals in the Cretaceous period, with