Mosasaur

Tylosaurus

Vertebrae in Chalk

Niobrara Formation

Cretaceous

NEBRASKA

Photographed by Michael P. Klimetz

Photographed by Michael P. Klimetz

Vertebrae

Ozan Formation

Cretaceous

TEXAS

Photographed by Michael P. Klimetz

Mosasaurus anceps

Tooth

Cretaceous

MOROCCO