Cleiocrinus regulus
Pleurocystites squamosus
Carabocrinus vancortlandti
Fusispira nobilis


Ordovician
Bobcaygeon Formation
Brechin, Ontario, Canada


Size: This plate is 14 X 22 INCHES.

This spectacular plate has 20 Pleurocystites cystoids, one Carabocrinus, a gastropod and a very rare example of a Cleiocrinus tegmen. For many years it has been suspected that Atroporites ottawaensis was the tegmen of a Cleiocrinus rather than a bryozoan as it was first described. However, there has never been any physical evidence to show conclusive proof that it was so. This is the second specimen of that conclusive proof. Unlike the previous example this specimen has arms attached to the tegmen. Attachment point of the calyx is also visible. Cleiocrinus is currently being redescribed and the two specimens (with tegmen) shown on these web pages are being used.
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