- echinoderm genus - a genus of echinoderms
--1 is a kind of genus
--1 is a member of Animalia, kingdom Animalia, animal kingdom
--1 has particulars:Euryale, genus Euryale; Astrophyton, genus Astrophyton; Gorgonocephalus, genus Gorgonocephalus; Ptilocrinus, genus Ptilocrinus; Antedon, genus Antedon; Holothuria, genus Holothuria