gQ Zweiter Abschnitt. Biogenetische Resultate. 



§ 161. Hypothetischer Stammbaum der Spumellarien. 



Larcoidea 



Discoidea 



Streblonida 



Prunoidea 



Soreumida 



Zygartida 



Tholonida 



Phacodiscaria 



Coccodiscida 



Zouarida 

 Lithelida I 



Phorticida 



Panartida 



Artiscida 



Spongodruppida 

 I 

 Spoogel- 

 lipsida 

 Cyphinida 



I 

 Druppulida 



Spougurida 



Pylonida 



Sphaeroidea 



Stylosphaerida 



Staurosphaerida 



Cyclo discaria 



Spongodiscida 

 Pylodiscida 



Phacodiscida 

 I 



Ellipsida 

 (Cenellipsis ) 



[Actiprunum?] 



Larnacida 



Larnacilla 

 (Trizonium) 



Larcarida 

 (Cenolarcus) 



[Actilarcus ?] 



Astrosphaerida 



Cubosphaerida 



Collosphaerida 



Cenodiscida 



Porodiscida 



Archidiscida 



Liosphaerida 

 (Cenosphaera) 



[Procyttarium] 



Cenodiscida 

 (Cenodiscus) 



[Actidiscus ?] 



Cenosphaera (Stammform aller Sphaerellaria?) 



Polycj*ttaria 



Collosphaerida Collozoida Sphaerozoida 



Ethmosphaerida 



Beloidea 



Thalassosphaerida 



Colloidea 



Thalassicollida 



Actissa 



Erste Sublegion: Collodaria 

 (Spumellaria palliata) 



I. Ord. Colloidea 

 II. Ord. Beloidea 



Zweite Sublegiou: Sphaerellaria 



(Spumellaria loricata) 



III. Ord. Sphaeroidea 

 V. Ord. Discoidea 



IV. Ord. Prunoidea 

 VI. Ord. Larcoidea 



