Opinions from M. Siverson 1997
- 'Archaeolamna belongs to Cretoxyrhinidae'
- 'Carcharias belongs to Odontaspididae'
- 'Cretolamna belongs to Cretoxyrhinidae'
- 'Cretolamna woodwardi belongs to Cretolamna' according to Herman 1977
- 'Cretolamna woodwardi is a subjective synonym of Pseudoisurus tomosus'
- 'Cretoxyrhinidae belongs to Lamniformes'
- 'Eoanacorax is a subjective synonym of Squalicorax'
- 'Eoanacorax dalinkevichiusi belongs to Eoanacorax' according to Glikman and Shvazhaite 1971
- 'Eoanacorax dalinkevichiusi is recombined as Squalicorax dalinkevichiusi'
- 'Galeus pristodontus is recombined as Squalicorax pristodontus'
- 'Hexanchidae belongs to Hexanchiformes'
- 'Leptostyrax belongs to Cretoxyrhinidae'
- 'Leptostyrax bicuspidatus belongs to Leptostyrax' according to Williston 1900
- 'Leptostyrax bicuspidatus belongs to Leptostyrax'
- 'Notidanus aptiensis belongs to Notidanus' according to Pictet 1865
- 'Notidanus aptiensis is recombined as Notorynchus aptiensis'
- 'Notorynchus belongs to Hexanchidae'
- 'Notorynchus maculatus belongs to Notorynchus' according to Ayers 1855
- 'Notorynchus maculatus belongs to Notorynchus'
- 'Odontaspis (Synodontaspis) striatula is recombined as Scapanorhynchus striatula' according to Landemaine 1991
- 'Odontaspis (Synodontaspis) striatula is recombined as Carcharias striatula'
- 'Odontaspis kopingensis belongs to Odontaspis' according to Davis 1890
- 'Odontaspis kopingensis is recombined as Archaeolamna kopingensis'
- 'Oxyrhina primaeva is recombined as Squalicorax primaevus'
- 'Palaeospinacidae belongs to Synechodontiformes'
- 'Paraisurus belongs to Cretoxyrhinidae'
- 'Paraisurus compressus belongs to Paraisurus' according to Sokolov 1978
- 'Paraisurus compressus belongs to Paraisurus'
- 'Paraorthacodus belongs to Palaeospinacidae'
- 'Paraorthacodus conicus belongs to Paraorthacodus' according to Davis 1890
- 'Paraorthacodus conicus belongs to Paraorthacodus'
- 'Pseudocorax primulus belongs to Pseudocorax' according to Müller and Diedrich 1991
- 'Pseudocorax primulus is a subjective synonym of Pseudocorax granti'
- 'Pseudoisurus tomosus belongs to Pseudoisurus' according to Glikman 1957
- 'Pseudoisurus tomosus belongs to Pseudoisurus'
- 'Sphenodus recurvus belongs to Sphenodus' according to Trautschold 1877
- 'Sphenodus recurvus is recombined as Paraorthacodus recurvus'
- 'Squalicorax belongs to Anacoracidae'
- 'Squalicorax primigenius belongs to Squalicorax' according to Landemaine 1991
- 'Squalicorax primigenius belongs to Squalicorax'
- 'Synechodus hesbayensis belongs to Synechodus' according to Casier 1943
- 'Synechodus hesbayensis is recombined as Paraorthacodus hesbayensis' according to Duffin 1993
- 'Synechodus nerviensis belongs to Synechodus' according to Leriche 1929
- 'Synechodus nerviensis is recombined as Paraorthacodus nerviensis' according to Duffin 1993
- 'Paraorthacodus nerviensis is a subjective synonym of Paraorthacodus conicus'
- 'Synechodus subulatus belongs to Synechodus'
- 'Synechodus subulatus is recombined as Paraorthacodus subulatus' according to Duffin 1993
- 'Synechodus subulatus belongs to Synechodus' according to Leriche 1951