Monophyletischer Stammbaum der Echinodermen. 



§ 217. Stammbaum der Echinodermen. 



379 



Orocincta *-»- 



Pentorchonia 



-ä»-> Pygocincta 



8. Asteridea 



Colasterida 



5. Crinoidea 



Neocrinida 



4. Blastoidea 



Eublastoida 



\Parblastoida 



Palacrinida 



\ 



\|/ 6. Echinidea 



Palasterida Autecbinida 



7. Ophiodea 



Colophiura 



Palophiura / 



Palechinida 



3. Cystoidea 



Parcystidea 



2. Thuroidea 



Holothuria 

 Actinopoda 

 Paractinota / 



Ascocystida 



IB. Amphoronia 



(Amphoridea 



radialia) 

 Falaeocystida 



Orocystida 



Aristocystida 



Pomocystida 



i 

 Pomonites 



Pentactaea 



I Eocystida 



lA. Amphoralia 



(Amphoridea 



bilateralia) 



Anomocystida 



Amphoraea 



Astrelminthes 



