Rare early echinoderm – Helicoplacus

$399

In stock

Description

Helicoplacus gilberti
Early Cambrian
Poleta Formation
White Mountains, Inyo County, CA, USA

45mm slab with 3. Average size 12mm

Helicoplacus is a genus of early echinoderms of the Class Helicoplacoidea.  Isolated plates of helicoplacoids have been found at a few different sites around the world but the group is known from complete specimens at this locality.

It seems the helicoplacoids appeared during the Early Cambrian and died out before the Middle Cambrian.

See: http://en.wikipedia.org/wiki/Helicoplacus

Additional information

Weight 30 g