- Crinoidea, class Crinoidea - sea lilies
--1 is a kind of class
--1 is a member of Echinodermata, phylum Echinodermata
--1 has members:crinoid; Ptilocrinus, genus Ptilocrinus; Antedonidae, family Antedonidae
crinoid; Ptilocrinus, genus Ptilocrinus; Antedonidae, family Antedonidae |