COMPLETE LIST OF CLASSES AND ORDERS 

 Class Subcl Order 



POGONOPHORA^^« 



POGONOPHORA 



Thecanephria 

 Athecanephria 



60 



REC 

 REC 

 REC 



ECHINODERMATA 



CYSTOIDEA ORD-PER 



Hydrophoridea "^ (Cystidea) ord-dev 



Rhombifera ord-dev 



Diploporita ord-dev 



Blastoidea ^" ord-per 



Eublastoidea sil-per 



Coronata ord-sil 



Parablastoidea ord 



CRINOIDEA ^^° {Brachiata, Actinoidea, Eucrinoidea) ord-rec 



Inadunata ^^^ ord-tri 



Disparida (Disparata) ord-per 



Hybocrinida ord-sil 



Cladida (Cladoidea) ord-tri 



Flexibilia (Ichthyocrinacea) ord-per 



Taxocrinida (Taxocrinoidea) ord-per 



Sagenocrinida (Sagenocrinoidea) sil-per 



Camerata (Sphaeroidocrinacea, Adunata) ord-per 



Diplobathrida (Diplobathra) ord-mis 



Monobathrida (Monobathra) ord-per 



Articulata ^^^ tri-rec 



Isocrinida tri-rec 



Millericrinida tri-eoc 



Cyrtocrinida jur-rec 



Uintacrinida cre 



Roveacrinida tri-cre 

 ^^^ Subphyla: Pelmatozoa = cystoidea + blastoidea + crinoidea + eocri- 



NOIDEA + PARACRINOIDEA + EDRIOASTEROIDEA. HomaloZOa = CARPOIDEA + MA- 



chaeridia. Haplozoa = single class haplozoa. Eleutherozoa = somasteroidea + 



ASTEROIDEA + OPHIUROIDEA + ECHINOIDEA + BOTHROCIDAROroEA + OPHIOCYSTO- 



IDEA -|- HOLOTHURioiDEA. Includes: Heterostelea (carpoidea + Amphoridea), As- 

 terozoa, Stelleroidea, Stelliformia, Hypostoma, Echinozoa, Cystocidaroidea, Apo- 

 rita. 



^^^ Includes: Eucystoidea, Cystechinoidea, Dichoporita, Cystocrlnoidea. 



"^ Sometimes separated into orders Regulares and Irregulares, or orders Eubla- 

 stoidea and Protoblastoidea. Sometimes as a separate class. 



^^° Includes: Palaeocrinoidea, Inarticulata, Coadunata, Costata, Testacea, Mo- 



