Crinoidea is a small class compared to the others in the phylum symmetry.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

The Crinoidea, in the abundance of stalked forms in the ancient formations as compared with their present rarity, seem to present us with a fair case of modification from a more embryonic towards a less embryonic condition.    From Wordnik.com.  [Lectures and Essays] Reference

Class: Crinoidea.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference