Monophyletischer Stammbaum der Echinodermen. 381 



§ 219. Stammbaum der Pentorchonien. 



Ophiodea 



Euryalonia 

 Colophiurae J Ophioctonia 



Asteridea 



Cryptozonia | 



Phanerozonia 



j 



Colasteriae 



Zygostichia 



Epimadrepia 



PalopMurae , 



Allostichia 



Hypomadrepia 



Echinidea 



Autechinida 



Agelacystida 



Falechinida 



Mesitida 



Cystechinida 



Cystoidea 



Parcystidea 



Falacrinida 

 Camerata 



Callocystida 



Glyptocystida 



Cystodiata 



/ 



Glyptocystida 



Cystoblastida 



Eacystidea 



Stammgruppe / „ .., 



der Cystoidea \ ^^^'^'^J'^'^^ -^^ 



Falasteriae 



Crinoidea 



Neocrinida 

 Canalicata 



Pelvicata 



Flexilata 



Inadunata 



Blastoidea 



Eublastoida 



Parblastoida 



Pentactaea 



