Species: Ptychodus whipplei
County: Grayson
Site: Post Oak Creek
Group: None
Formation: Eagle Ford/Atco
Member: None
Period: Cretaceous
Epoch: Upper K
Stage: Coniacian
Class: Chondrichthyes
Order: Lamniformes
Superfamily: None
Family: Ptychodontidae
Genus: Ptychodus
State: Texas
Credit: mmm
ID: 586