Description
Periaster sp.
Echinoid
Paleocene
Locatelli Formation
Santa Cruz Mountains, California, USA.
25mm echinoid. Crushed on back, but very rare.
Echinoderm. Echinoid.
Periaster is a genus of sea urchin better known from the Middle Cretaceous (Cenomanian) of France. Its occurrence in the Paleocene of California greatly extends its chronologic and paleogeographic range.
Rare, off-locality find.