Opinions from C. D. Walcott 1910

  • 'Callavia belongs to Mesonacidae'
  • 'Callavia bicensis belongs to Callavia'
  • 'Callavia burri belongs to Callavia'
  • 'Callavia crosbyi belongs to Callavia'
  • 'Callavia nevadensis belongs to Callavia'
  • 'Elliptocephalus is a subjective synonym of Olenus' according to Hall 1847
  • 'Elliptocephala belongs to Mesonacidae'
  • 'Elliptocephala is replaced by Georgiellus' according to Moberg 1899
  • 'Elliptocephala was reranked as Olenellus (Elliptocephalus) and belongs to Olenellus' according to Ford 1877
  • 'Elliptocephala asaphoides is recombined as Olenellus asaphoides' according to Holm 1887
  • 'Elliptocephala asaphoides is recombined as Elliptocephalus asaphoides' according to Marcou 1888
  • 'Elliptocephala asaphoides is recombined as Ebenezeria asaphoides' according to Marcou 1888
  • 'Elliptocephala asaphoides is recombined as Olenellus asaphoides' according to Matthew 1891
  • 'Elliptocephala asaphoides belongs to Elliptocephala' according to Cole 1892
  • 'Elliptocephala asaphoides is recombined as Olenellus asaphoides' according to Bernard 1894
  • 'Elliptocephala asaphoides belongs to Elliptocephala' according to Emmons 1846
  • 'Elliptocephala asaphoides is recombined as Mesonacis (Olenellus) asaphoides' according to Peach 1894
  • 'Elliptocephala asaphoides is recombined as Olenus asaphoides' according to Fitch 1849
  • 'Elliptocephala asaphoides is recombined as Olenellus (Mesonacis) asaphoides' according to Beecher 1895
  • 'Elliptocephala asaphoides is recombined as Paradoxides asaphoides' according to Barrande 1861
  • 'Elliptocephala asaphoides is recombined as Georgiellus asaphoides' according to Moberg 1899
  • 'Elliptocephala asaphoides is recombined as Olenellus (Olenus) asaphoides' according to Ford 1871
  • 'Elliptocephala asaphoides is recombined as Olenellus (Georgiellus) asaphoides' according to Pompeckj 1901
  • 'Elliptocephala asaphoides is recombined as Olenellus (Elliptocephalus) asaphoides' according to Ford 1877
  • 'Elliptocephala asaphoides is recombined as Olenellus asaphoides' according to Lindström 1901
  • 'Elliptocephala asaphoides is recombined as Olenellus asaphoides' according to Ford 1878
  • 'Elliptocephala asaphoides belongs to Elliptocephala'
  • 'Elliptocephala asaphoides is recombined as Olenellus asaphoides' according to Ford 1881
  • 'Georgiellus was reranked as Olenellus (Georgiellus) and belongs to Olenellus' according to Pompeckj 1901
  • 'Holmia belongs to Mesonacidae'
  • 'Holmia rowei belongs to Holmia'
  • 'Holmia weeksi belongs to Holmia' according to Walcott 1908
  • 'Holmia weeksi is recombined as Nevadia weeksi'
  • 'Mesonacidae belongs to Opisthoparia'
  • 'Mesonacis belongs to Mesonacidae'
  • 'Nevadia belongs to Mesonacidae'
  • 'Olenellidae is a subjective synonym of Mesonacidae'
  • 'Olenellus was reranked as Mesonacis (Olenellus) and belongs to Mesonacis' according to Peach 1894
  • 'Olenellus belongs to Mesonacidae'
  • 'Olenellus was reranked as Holmia (Olenellus) and belongs to Holmia' according to Peach 1894
  • 'Olenellus (Holmia) cartlandi is recombined as Callavia cartlandi'
  • 'Olenellus (Holmia) cartlandi belongs to Olenellus (Holmia)' according to Raw 1909
  • 'Olenellus (Holmia) walcottanus belongs to Olenellus (Holmia)' according to Wanner 1901
  • 'Olenellus (Holmia) walcottanus is recombined as Wanneria walcottanus'
  • 'Olenellus (Olenelloides) belongs to Olenellus' according to Peach 1894
  • 'Olenellus (Olenelloides) was reranked as Olenelloides and belongs to Mesonacidae'
  • 'Olenellus (Olenelloides) armatus belongs to Olenellus (Olenelloides)' according to Peach 1894
  • 'Olenellus (Olenelloides) armatus is recombined as Olenelloides armatus' according to Moberg 1899
  • 'Olenellus (Olenelloides) armatus is recombined as Olenelloides armatus'
  • 'Olenellus argentus belongs to Olenellus'
  • 'Olenellus broggeri belongs to Olenellus' according to Walcott 1888
  • 'Olenellus broggeri belongs to Olenellus' according to Walcott 1888
  • 'Olenellus broggeri is recombined as Holmia broggeri' according to Marcou 1890
  • 'Olenellus broggeri is recombined as Cephalacanthus broggeri' according to Lapworth 1891
  • 'Olenellus broggeri is recombined as Callavia broggeri' according to Matthew 1897
  • 'Olenellus broggeri is recombined as Olenellus (Holmia) broeggeri' according to Pompeckj 1901
  • 'Olenellus broggeri belongs to Olenellus' according to Bernard 1894
  • 'Olenellus broggeri is recombined as Holmia broggeri' according to Peach 1894
  • 'Olenellus broggeri is recombined as Callavia broggeri'
  • 'Olenellus callavei is recombined as Callavia callavei'
  • 'Olenellus callavei belongs to Olenellus' according to Lapworth 1888
  • 'Olenellus callavei belongs to Olenellus' according to Lapworth 1888
  • 'Olenellus callavei is recombined as Olenellus (Holmia) callavei' according to Lapworth 1891
  • 'Olenellus callavei is recombined as Olenellus (Holmia) callavei' according to Cole 1892
  • 'Olenellus callavei is recombined as Callavia callavii' according to Matthew 1897
  • 'Olenellus canadensis belongs to Olenellus'
  • 'Olenellus claytoni belongs to Olenellus'
  • 'Olenellus fremonti belongs to Olenellus'
  • 'Olenellus gigas belongs to Olenellus' according to Peach 1894
  • 'Olenellus gigas belongs to Olenellus'
  • 'Olenellus gilberti belongs to Olenellus'
  • 'Olenellus gilberti belongs to Olenellus' according to Holm 1887
  • 'Olenellus iddingsi belongs to Olenellus' according to Holm 1887
  • 'Olenellus iddingsi is recombined as Peachella iddingsi'
  • 'Olenellus intermedius belongs to Olenellus' according to Peach 1894
  • 'Olenellus intermedius is a subjective synonym of Olenellus lapworthi'
  • 'Olenellus lapworthi belongs to Olenellus' according to Peach and Horne 1894
  • 'Olenellus lapworthi belongs to Olenellus' according to Peach 1894
  • 'Olenellus lapworthi belongs to Olenellus'
  • 'Olenellus lundgreni is recombined as Holmia lundgreni' according to Moberg 1899
  • 'Olenellus lundgreni is recombined as Holmia lundgreni' according to Lindström 1901
  • 'Olenellus lundgreni is recombined as Holmia lundgreni'
  • 'Olenellus mickwitzi belongs to Olenellus' according to Schmidt 1888
  • 'Olenellus mickwitzi belongs to Olenellus' according to Schmidt 1889
  • 'Olenellus mickwitzi is recombined as Elliptocephalus (Schmidtia) mickwitzi' according to Marcou 1890
  • 'Olenellus mickwitzi [misspelled as Mesonacis mickwitziae] belongs to Mesonacis' according to Peach 1894
  • 'Olenellus mickwitzi is recombined as Olenellus (Mesonacis) mickwitzi' according to French 1897
  • 'Olenellus mickwitzi is recombined as Schmidtia mickwitzi' according to Moberg 1899
  • 'Olenellus mickwitzi is recombined as Mesonacis mickwitziae'
  • 'Olenellus reticulatus belongs to Olenellus'
  • 'Olenellus thompsoni crassimarginatus belongs to Olenellus thompsoni'
  • 'Olenellus torelli belongs to Olenellus' according to Moberg 1892
  • 'Olenellus torelli is recombined as Schmidtia torelli' according to Moberg 1899
  • 'Olenellus torelli is recombined as Mesonacis torelli'
  • 'Olenus was reranked as Olenellus (Olenus) and belongs to Olenellus' according to Ford 1871
  • 'Olenus thompsoni is recombined as Olenellus thompsoni' according to Moberg 1899
  • 'Olenus thompsoni is recombined as Olenellus thompsoni' according to Lindström 1901
  • 'Olenus thompsoni is recombined as Olenellus thompsoni'
  • 'Olenus thompsoni is recombined as Barrandia thompsoni' according to Hall 1860
  • 'Olenus thompsoni is recombined as Paradoxides thompsoni' according to Barrande 1861
  • 'Olenus thompsoni is recombined as Olenellus thompsoni' according to Ford 1881
  • 'Olenus thompsoni is recombined as Olenellus thompsoni' according to Holm 1887
  • 'Olenus thompsoni is recombined as Olenellus thompsoni' according to Cole 1892
  • 'Olenus thompsoni is recombined as Olenellus thompsoni' according to Frech 1897
  • 'Olenus vermontana is recombined as Olenellus vermontana' according to Holm 1887
  • 'Olenus vermontana is recombined as Elliptocephalus (Schmidtia) vermontana' according to Marcou 1890
  • 'Olenus vermontana is recombined as Olenellus (Mesonacis) vermontana' according to Cole 1892
  • 'Olenus vermontana is recombined as Mesonacis vermontana' according to Moberg 1899
  • 'Olenus vermontana is recombined as Mesonacis vermontana'
  • 'Olenus vermontana is recombined as Barrandia vermontana' according to Hall 1860
  • 'Olenus vermontana is recombined as Paradoxides vermontana' according to Barrande 1861
  • 'Olenus vermontana is recombined as Barrandia vermontana' according to Hall 1861
  • 'Olenus vermontana is recombined as Olenellus vermontanus' according to Ford 1881
  • 'Paedeumias belongs to Mesonacidae'
  • 'Paedeumias transitans belongs to Paedeumias'
  • 'Paradoxides kjerulfi is recombined as Olenellus (Holmia) kjerulfi' according to French 1897
  • 'Paradoxides kjerulfi is recombined as Holmia kjerulfi' according to Moberg 1899
  • 'Paradoxides kjerulfi is recombined as Holmia kjerulfi' according to Lindström 1901
  • 'Paradoxides kjerulfi belongs to Paradoxides' according to Kjerulf 1873
  • 'Paradoxides kjerulfi is recombined as Holmia kjerulfi'
  • 'Paradoxides kjerulfi is recombined as Olenellus kjerulfi' according to Brögger 1878
  • 'Paradoxides kjerulfi belongs to Paradoxides' according to Ford 1878
  • 'Paradoxides kjerulfi belongs to Paradoxides' according to Ford 1881
  • 'Paradoxides kjerulfi is recombined as Olenellus kjerulfi' according to Linnarsson 1883
  • 'Paradoxides kjerulfi is recombined as Olenellus kjerulfi' according to Matthew 1886
  • 'Paradoxides kjerulfi is recombined as Olenellus kjerulfi' according to Holm 1887
  • 'Paradoxides kjerulfi belongs to Paradoxides' according to Matthew 1888
  • 'Paradoxides kjerulfi is recombined as Holmia kjerulfi' according to Marcou 1890
  • 'Paradoxides kjerulfi is recombined as Cephalacanthus kjerulfi' according to Lapworth 1891
  • 'Paradoxides kjerulfi is recombined as Olenellus (Holmia) kjerulfi' according to Cole 1892
  • 'Paradoxides kjerulfi is recombined as Holmia (Olenellus) kjerulfi' according to Peach 1894
  • 'Paradoxides walcotti belongs to Paradoxides' according to Shaler and Foerste 1888
  • 'Paradoxides walcotti is recombined as Olenellus walcotti'
  • 'Peachella belongs to Mesonacidae'
  • 'Schmidtia was reranked as Elliptocephalus (Schmidtia) and belongs to Elliptocephalus' according to Marcou 1890
  • 'Schmidtia is a subjective synonym of Mesonacis'
  • 'Schmidtiellus is a subjective synonym of Mesonacis'
  • 'Wanneria belongs to Mesonacidae'
  • 'Wanneria gracile belongs to Wanneria'