(DSM# 1876) These small marine clams are found in sediments that range from the late Cretaceous all the way to the Paleocene, which means they survived the K-Pg extinction.
(DSM# FK342) Extinct genus - This is a marine crab that has only one species assigned to it. It is exclusively found in Cretaceous sediments of the southeastern United States.
(DSM# FK124) Extinct genus - Baculites and other ammonites show intricate patterns on their shells called suture marks. Suture patterns are unique to species and indicate the shape of the chamber in which the animal lived.