Description

Ctenocystis utahensis Robison & Sprinkle
Middle Cambrian
Spence Shale
Antimony Canyon, Wellsville Mtn. UT USA
8mm unusual echinoderm.

Carpoid. Echinoderm.

Ctenocystis is an early echinoderm that has been considered a carpoid closely-related to the ancestor of echinoderms. It appears that it lived only during the Cambrian. It’s an uncommon find in the Spence Shale.