Didymoceras cheyennense & Baculites compressus Ammonite/Cephalopods Baryonyx The animals had a canteen-shaped

The animals had a canteen-shaped body armor

This is a “serious collector” specimen

Duckbill tibia

Andiva and Ovatoscutum

and rings of bony armor on its short tail

Didymoceras cheyennense & Baculites compressus Ammonite/Cephalopods Baryonyx The animals had a canteen-shapedThis authentic fossil specimen is from the Pierre Shale (Lower Cretaceous) and was found near the town of Central, South Dakota. Didymoceras is an extinct genus of ammonite cephalopod. It is one of the most bizarrely shaped genera, with a shell that spirals upwards into a loose, hooked tip. It is thought to have drifted in the water vertically, moving up and down. The generic name is Latin for "paired horns". Baculites ("walking stick rock") is an