(Ptychoceras_minimum,(Worthoceras_worthense,((((Hamitella_annulata,Hamites_attenuatus),(Prohelicoceras_moutonianum,Protanisoceras_raulinianum,Heteroclinus_nodosum)),(Torquistylus_anglicum,(Stomohamites_nokonsis,Lytohamites_similis,(Metahamites_sablieri,(Stomohamites_virgulatus,((Stomohamites_parkinsoni,(Proturrilitoides_astierianus,(Turrilitoides_hugardianus,Paraturrilites_gresslyi))),(Anisoceras_saussureanum,Pseudhelicoceras_robertianum)))),(Lechites_gaudini,Sciponoceras_skipperae)))),(Hamites_hybridus,(Hamitoides_studerianus,(Scaphamites_passendorferi,(Eoscaphites_circularis,(Eoscaphites_subcircularis,Scaphites_hugardianus))))))));