Mesozoic Echinoids

Photographed by Michael P. Klimetz

Phymosoma texanum

Lower Cretaceous

Mills County

TEXAS

Photographed by Michael P. Klimetz

Hemiaster calvini

Cretaceous

TEXAS

Photographed by Michael P. Klimetz

Hemicidaris luciensis

Jurassic

FRANCE

Micraster sp.

Upper Cretaceous

[Planus Zone]

Dover

UNITED KINGDOM

Photographed by Michael P. Klimetz