California echinoid – Periaster

$59

In stock

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Description

Periaster sp.

Paleocene

Locatelli Formation

Santa Cruz Mountains, CA USA.

74mm slab with 18mm rare echinoid.

Periaster is a genus of sea urchin better known from the Middle Cretaceous (Cenomanian) of France.  Its occurrence in the Paleocene of California is therefore hard to explain.

Additional information

Weight 170 g