Large 7/8 Ptychodus Mortoni Fossil Cretaceous Crusher Shark Tooth

Rare Protocallianassa mortoni Crab Claw - Cretaceous

Extinct Animal of the Week: Crushing it in the Cretaceous

The Ptychodontid Sharks

Ptychodus Crusher Shark Tooth #1

The Ptychodontid Sharks

Worldwide shark teeth for sale

Ptychodus mortoni

Shark Teeth - General Fossil Discussion - The Fossil Forum

A new hybodontiform shark (Strophodus Agassiz 1838) from the Lower Cretaceous (Valanginian-Hauterivian) of Colombia [PeerJ]

96 Crusher Shark (Ptychodus) Tooth - Kansas (#71756) For Sale

The Ptychodontid Sharks