Photographed by Michael P. Klimetz
Exogyra arietina
Cretaceous
OKLAHOMA
Monotis sp.
["Paper Clams"]
Pardonet Formation
Upper Triassic
Pine Pass
North West Territories
CANADA
Photographed by Michael P. Klimetz
Photographed by Ronald Garney
Texigryphea mucronata
Cretaceous
Austin
TEXAS
Photographed by Michael P. Klimetz
Ilmatogyra arietina
Cretaceous
San Marcos
TEXAS
Photographed by Michael P. Klimetz
Triassic
Karroo Sandstone
MADAGASCAR
Photographed by Michael P. Klimetz
Cimitata angulata
Cretaceous
Sherman
TEXAS
Photographed by Michael P. Klimetz
Trigonia sp.
Jurassic
Bavaria
GERMANY
Photographed by Michael P. Klimetz
Trigonia daedala
Middle Cretaceous
BELGIUM
