Opinions from R. Zangerl 1981

  • 'Acondylacanthus belongs to Ctenacanthidae'
  • 'Agassizodus belongs to Agassizodontidae'
  • 'Anaclitacanthus belongs to Ctenacanthoidea'
  • 'Antliodus belongs to Petalodontida'
  • 'Arctacanthus belongs to Ctenacanthoidea'
  • 'Arpagodus belongs to Agassizodontidae'
  • 'Asteroptychius belongs to Ctenacanthoidea'
  • 'Bandringa belongs to Bandringidae'
  • 'Bandringidae belongs to Ctenacanthoidea'
  • 'Bobbodus belongs to Eugeneodontidae'
  • 'Bobbodus schaefferi belongs to Bobbodus'
  • 'Bradyodontida belongs to Chondrichthyes'
  • 'Bransonella belongs to Xenacanthidae'
  • 'Calopodus belongs to Petalodontida'
  • 'Campodus belongs to Caseodontoidea'
  • 'Campyloprion belongs to Agassizodontidae'
  • 'Carinacanthus belongs to Ctenacanthoidea'
  • 'Caseodontidae belongs to Caseodontoidea'
  • 'Caseodontoidea belongs to Elasmobranchii'
  • 'Caseodus belongs to Caseodontidae'
  • 'Caseodus eatoni belongs to Caseodus'
  • 'Chiastodus belongs to Caseodontoidea'
  • 'Chimaeridae belongs to Chimaerina'
  • 'Chimaerina belongs to Bradyodontida'
  • 'Chomatodus belongs to Petalodontida'
  • 'Chondrenchelyidae belongs to Chondrichthyes'
  • 'Cladodus hassiacus is a nomen dubium'
  • 'Cladodus hassiacus belongs to Cladodus' according to Gross 1937
  • 'Cladodus wildungensis belongs to Cladodus' according to Jaekel 1921
  • 'Cladodus wildungensis is a nomen dubium'
  • 'Cladoselache belongs to Cladoselachidae'
  • 'Cladoselachida belongs to Elasmobranchii'
  • 'Cladoselachidae belongs to Cladoselachida'
  • 'Cobelodus belongs to Symmoriidae'
  • 'Cochliodontidae belongs to Chimaerina'
  • 'Copodontidae belongs to Bradyodontida'
  • 'Coronodontida belongs to Elasmobranchii'
  • 'Coronodus belongs to Coronodontida'
  • 'Cratoselache belongs to Ctenacanthidae'
  • 'Ctenacanthidae belongs to Ctenacanthoidea'
  • 'Ctenacanthoidea belongs to Euselachii'
  • 'Ctenacanthus belongs to Ctenacanthidae'
  • 'Ctenoptychius belongs to Petalodontida'
  • 'Dabasacanthus belongs to Hybodontoidea'
  • 'Deltodontidae belongs to Chimaerina'
  • 'Deltoptychiidae belongs to Chimaerina'
  • 'Deltoptychius belongs to Deltoptychiidae'
  • 'Denaea belongs to Symmoriidae'
  • 'Desmiodus belongs to Desmiodontida'
  • 'Diacranodus belongs to Xenacanthidae'
  • 'Diademodus belongs to Coronodontida'
  • 'Diplodoselachidae belongs to Xenacanthida'
  • 'Edestidae belongs to Edestoidea'
  • 'Edestoidea belongs to Eugeneodontida'
  • 'Edestus belongs to Edestidae'
  • 'Elasmobranchii belongs to Chondrichthyes'
  • 'Erikodus belongs to Caseodontidae'
  • 'Eugeneodontida belongs to Elasmobranchii'
  • 'Eugeneodontidae belongs to Caseodontoidea'
  • 'Eugeneodus belongs to Caseodontidae'
  • 'Eugeneodus richardsoni belongs to Eugeneodus'
  • 'Euselachii was reranked as a order and belongs to Elasmobranchii'
  • 'Fadenia belongs to Caseodontidae'
  • 'Fissodus belongs to Petalodontida'
  • 'Gilliodus orvellei belongs to Gilliodus'
  • 'Gilliodus peyeri belongs to Gilliodus'
  • 'Glyphanodus belongs to Petalodontida'
  • 'Goodrichthys belongs to Ctenacanthidae'
  • 'Harpacodus belongs to Petalodontida'
  • 'Helicampodus belongs to Edestidae'
  • 'Helicoprion belongs to Agassizodontidae'
  • 'Helicoprion ivanovi is recombined as Campyloprion ivanovi'
  • 'Helodontidae belongs to Holocephali'
  • 'Hercynolepis belongs to Orodontidae'
  • 'Heteropetalus belongs to Desmiodontida'
  • 'Holmesella belongs to Protacrodontoidea'
  • 'Holocephali was reranked as a superorder and belongs to Chondrichthyes'
  • 'Hybodontoidea belongs to Euselachii'
  • 'Iniopera belongs to Sibyrhynchidae'
  • 'Iniopterygia belongs to Subterbranchialia'
  • 'Iniopterygidae belongs to Iniopterygia'
  • 'Iniopteryx belongs to Iniopterygidae'
  • 'Inioxyele belongs to Sibyrhynchidae'
  • 'Janassa belongs to Petalodontida'
  • 'Jimpohlia belongs to Bradyodontida'
  • 'Leiodus belongs to Orodontidae'
  • 'Lestrodus belongs to Edestidae'
  • 'Lisgodus belongs to Petalodontida'
  • 'Lophodus belongs to Orodontidae'
  • 'Megactenopetalus belongs to Pristodontidae'
  • 'Menaspidae belongs to Chimaerina'
  • 'Menaspis belongs to Menaspidae'
  • 'Menaspis armata belongs to Menaspis'
  • 'Mesodmodus belongs to Orodontidae'
  • 'Mesolophodus belongs to Petalodontida'
  • 'Monocladodus belongs to Cladoselachidae'
  • 'Onychoselache belongs to Hybodontoidea'
  • 'Ornithoprion belongs to Caseodontidae'
  • 'Orodontida belongs to Elasmobranchii'
  • 'Orodontidae belongs to Orodontida'
  • 'Orodus belongs to Orodontidae'
  • 'Orodus basalis is recombined as Caseodus basalis'
  • 'Orodus greggi belongs to Orodus'
  • 'Orodus micropterygius belongs to Orodus'
  • 'Orthacanthus belongs to Xenacanthidae'
  • 'Paracymatodus belongs to Petalodontida'
  • 'Parahelicampodus belongs to Edestidae'
  • 'Parahelicoprion belongs to Agassizodontidae'
  • 'Peripristis belongs to Pristodontidae'
  • 'Petalodopsis tripartitis belongs to Petalodopsis' according to Davis 1833
  • 'Petalodopsis tripartitis belongs to Petalodopsis'
  • 'Petalodus belongs to Petalodontida'
  • 'Petalorhynchus belongs to Petalodontida'
  • 'Phoebodontidae belongs to Ctenacanthoidea'
  • 'Phoebodus belongs to Phoebodontidae'
  • 'Platyacanthus belongs to Xenacanthidae'
  • 'Pleuracanthus belongs to Xenacanthidae'
  • 'Polyrhizodus belongs to Petalodontida'
  • 'Polysentor belongs to Polysentoridae'
  • 'Pristodontidae belongs to Petalodontida'
  • 'Pristodus belongs to Pristodontidae'
  • 'Promexyele belongs to Iniopterygidae'
  • 'Protacrodus belongs to Protacrodontoidea'
  • 'Psephodontidae belongs to Bradyodontida'
  • 'Romerodus belongs to Caseodontidae'
  • 'Romerodus orodontus belongs to Romerodus'
  • 'Sarcoprion belongs to Agassizodontidae'
  • 'Serratodus belongs to Petalodontida'
  • 'Sibyrhynchidae belongs to Iniopterygia'
  • 'Sibyrhynchus belongs to Sibyrhynchidae'
  • 'Similihariotta belongs to Chimaeridae'
  • 'Sphenacanthus serrulatus belongs to Sphenacanthus'
  • 'Squatinactida belongs to Elasmobranchii'
  • 'Squatinactis belongs to Squatinactida'
  • 'Stethacanthidae belongs to Symmoriida'
  • 'Stethacanthus belongs to Stethacanthidae'
  • 'Subterbranchialia belongs to Chondrichthyes'
  • 'Symmoriida belongs to Elasmobranchii'
  • 'Symmoriidae belongs to Symmoriida'
  • 'Symmorium belongs to Symmoriidae'
  • 'Syntomodus belongs to Edestidae'
  • 'Tamiobatis vetustus is a nomen dubium'
  • 'Tanaodus belongs to Petalodontida'
  • 'Toxoprion belongs to Agassizodontidae'
  • 'Trichorhipis belongs to Hybodontoidea'
  • 'Triodus belongs to Xenacanthidae'
  • 'Tristychius belongs to Hybodontoidea'
  • 'Wodnika belongs to Ctenacanthoidea'
  • 'Xenacanthida belongs to Elasmobranchii'
  • 'Xenacanthidae belongs to Xenacanthida'
  • 'Xenacanthus belongs to Xenacanthidae'