Opinions from F. B. Phleger 1933
- 'Amphion barrandei is recombined as Pliomerops barrandei' according to Raymond 1910
- 'Amphion barrandei is recombined as Pliomerops barrandei'
- 'Pliomerops nevadensis is a subjective synonym of Pliomerops barrandei'
- 'Amphion nevadensis is recombined as Pliomerops nevadensis' according to Bassler 1915
- 'Asaphidae belongs to Opisthoparia'
- 'Asaphinae belongs to Asaphidae'
- 'Brachiopoda was reranked as a class and belongs to Molluscoidea'
- 'Ceraurus belongs to Cheirurinae'
- 'Ceraurus infrequens belongs to Ceraurus'
- 'Cheiruridae belongs to Proparia'
- 'Cheirurinae belongs to Cheiruridae'
- 'Crustacea was reranked as a class and belongs to Arthropoda'
- 'Cybeloides belongs to Encrinuridae'
- 'Cybeloides calliteles belongs to Cybeloides'
- 'Encrinuridae belongs to Proparia'
- 'Encrinurus belongs to Encrinuridae'
- 'Encrinurus hastula belongs to Encrinurus'
- 'Encrinurus octonarius belongs to Encrinurus'
- 'Isotelus belongs to Asaphinae'
- 'Isotelus spurius belongs to Isotelus'
- 'Lloydia belongs to Asaphidae'
- 'Lloydia obsoletus belongs to Lloydia'
- 'Opisthoparia belongs to Trilobita'
- 'Orthacea belongs to Protremata'
- 'Orthidae belongs to Orthacea'
- 'Orthinae belongs to Orthidae'
- 'Orthis belongs to Orthinae'
- 'Orthis decipiens belongs to Orthis'
- 'Orthis minusculus belongs to Orthis'
- 'Plectambonites belongs to Rafinesquinae'
- 'Plectambonites angulatus belongs to Plectambonites'
- 'Plectorthidae belongs to Orthacea'
- 'Plectorthinae belongs to Plectorthidae'
- 'Plectorthis belongs to Plectorthinae'
- 'Plectorthis mazourkaensis belongs to Plectorthis'
- 'Plectorthis patulus belongs to Plectorthis'
- 'Pliomerinae belongs to Cheiruridae'
- 'Pliomerops belongs to Pliomerinae'
- 'Proparia belongs to Trilobita'
- 'Protremata belongs to Brachiopoda'
- 'Rafinesquinae belongs to Strophomenidae'
- 'Remopleuridae belongs to Opisthoparia'
- 'Remopleurides belongs to Remopleuridae'
- 'Remopleurides occidens belongs to Remopleurides'
- 'Strophomenacea belongs to Protremata'
- 'Strophomenidae belongs to Strophomenacea'
- 'Trilobita was reranked as a subclass and belongs to Crustacea'