Opinions from G. Henningsmoen 1953

  • 'Acronotellidae belongs to Beyrichiacea'
  • 'Aparchitidae belongs to Beyrichiacea'
  • 'Beyrichia dissecta is recombined as Kiesowia dissecta' according to Krause 1892
  • 'Beyrichia dissecta is recombined as Kiesowia dissecta'
  • 'Beyrichia plicatula is recombined as Tetradella plicatula' according to Krause 1892
  • 'Beyrichia plicatula is recombined as Tetradella plicatula'
  • 'Beyrichia quadrilirata is recombined as Tetradella quadrilirata'
  • 'Beyrichia strangulata is recombined as Primitia strangulata'
  • 'Beyrichiacea belongs to Paleocopa'
  • 'Biflabellum tenerum is recombined as Opikium tenerum'
  • 'Bolbina belongs to Sigmoopsiinae'
  • 'Bolbina minor belongs to Bolbina' according to Krause 1892
  • 'Bolbina tuberculata belongs to Bolbina'
  • 'Bollia belongs to Bolliinae'
  • 'Bollia accentuata belongs to Bollia'
  • 'Bollia duplex belongs to Bollia' according to Krause 1892
  • 'Bollia ornata is recombined as Bolbina ornata'
  • 'Bollia uniflexa belongs to Bollia' according to Jones and Holl 1886
  • 'Bolliinae belongs to Drepanellidae'
  • 'Chilobolbina belongs to Primitiidae'
  • 'Chilobolbina jonesiana belongs to Chilobolbina' according to Schmidt 1941
  • 'Ctenobolbina rara is recombined as Primitiella rara' according to Troedsson 1918
  • 'Ctenobolbina rara is recombined as Primitiella rara'
  • 'Drepanellidae belongs to Beyrichiacea'
  • 'Eridoconcha belongs to Eridoconchidae'
  • 'Euprimitiinae belongs to Eurychilinidae'
  • 'Eurychilina estonula is recombined as Laccochilina estonula'
  • 'Eurychilinidae belongs to Beyrichiacea'
  • 'Eurychilininae belongs to Eurychilinidae'
  • 'Isochilina frequens is recombined as Opikella frequens'
  • 'Kiesowia belongs to Sigmoopsiinae'
  • 'Laccochilina belongs to Eurychilinidae'
  • 'Laccochilina tarda belongs to Laccochilina'
  • 'Leperditia bivertex is recombined as Pseudulrichia bivertex'
  • 'Leperditia praelonga is recombined as Macronotella praelonga'
  • 'Macronotella belongs to Aparchitidae'
  • 'Macronotella scofieldi belongs to Macronotella' according to Ulrich 1894
  • 'Monoceratella belongs to Acronotellidae'
  • 'Monoceratella bos belongs to Monoceratella'
  • 'Monoceratella teres belongs to Monoceratella' according to Teichert 1937
  • 'Opikella belongs to Eurychilinidae'
  • 'Opikella tvaerensis belongs to Opikella' according to Thorslund 1940
  • 'Opikium belongs to Piretellinae'
  • 'Opikium porkuniensis belongs to Opikium'
  • 'Piretellinae belongs to Tetradellidae'
  • 'Platybolbina belongs to Eurychilininae'
  • 'Platybolbina tiara belongs to Platybolbina'
  • 'Primitia belongs to Primitiidae'
  • 'Primitia dentifera is recombined as Chilobolbina dentifera'
  • 'Primitia distans is recombined as Platybolbina distans'
  • 'Primitia elongata is recombined as Platybolbina elongata' according to Krause 1891
  • 'Primitia elongata is recombined as Platybolbina elongata'
  • 'Primitia osloensis belongs to Primitia'
  • 'Primitia plana is recombined as Platybolbina plana' according to Krause 1889
  • 'Primitia plana is recombined as Platybolbina plana'
  • 'Primitia umbonata is recombined as Platybolbina umbonata'
  • 'Primitiella belongs to Euprimitiinae'
  • 'Primitiella constricta belongs to Primitiella' according to Ulrich 1894
  • 'Primitiella umbilicata is recombined as Opikella umbilicata'
  • 'Primitiidae belongs to Beyrichiacea'
  • 'Pseudulrichia belongs to Bolliinae'
  • 'Pseudulrichia norvegica belongs to Pseudulrichia'
  • 'Sigmobolbina belongs to Sigmoopsiinae'
  • 'Sigmoopsiidae belongs to Beyrichiacea'
  • 'Sigmoopsiidae was reranked as the subfamily Sigmoopsiinae and belongs to Sigmoopsiidae'
  • 'Tetradella belongs to Tetradellinae'
  • 'Tetradellinae belongs to Tetradellidae'