Description

Thoralicystis zagoraensis

Ordovician

Upper Fezouata Formation

Zagora Morocco.

26mm carpoid on 62mm slab.

Thoralicystis is a carpoid genus known only from the Early Ordovician of Morocco.  Carpoids are an extinct group that most paleontologists consider to be early echinoderms.

This specimen comes from a time relatively early in their history.  They died out during the Devonian Period.