Complete crinoids are locally abundant. Often overlooked are
the holdfasts. Several are featured here.

Click on images to Magnify

Three crinoid holdfasts on one bryozoan.

A flattened crinoid holdfast coating part of a bryozoan.

Side view of a crinoid holdfast on a bryozoan branch.

Lichenocrinus is a plated holdfast for Cincinnaticrinus.

The scar from a Lichenocrinus attachment on a clam.

Podolithus is another interesting crinoid holdfast. It occurs
on hardground surfaces, too.

Kope Formation