The Natural Canvas Fossils / 5503 Fossil Echinoderms - Echinoids, Crinoids, Cystoids, Carpoids, Starfish and other extinct forms Purchase here: ncanvas@aol.com

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Periaster sp.

Paleocene, California, USA

38mm Paleocene echinoid from California. Hard to obtain as the site is remote and very small so it produces few echinoids that are this nice.

$24