Opinions from C. R. Eastman 1904
- 'Asterospondyli belongs to Selachii'
- 'Carcharias belongs to Carchariidae'
- 'Carcharias (Prionodon) belongs to Carcharias'
- 'Carcharias collata belongs to Carcharias'
- 'Carcharias incidens belongs to Carcharias'
- 'Carcharias megalodon belongs to Carcharias' according to Charlesworth 1837
- 'Carcharias megalodon is recombined as Carcharodon megalodon'
- 'Carchariidae belongs to Asterospondyli'
- 'Carcharodon belongs to Lamnidae'
- 'Carcharodon ferox belongs to Carcharodon' according to Emmons 1858
- 'Carcharodon ferox is a subjective synonym of Carcharodon megalodon'
- 'Carcharodon rectus belongs to Carcharodon' according to Agassiz 1856
- 'Carcharodon rectus is a subjective synonym of Carcharodon megalodon'
- 'Carcharodon triangularis belongs to Carcharodon' according to Emmons 1858
- 'Carcharodon triangularis is a subjective synonym of Carcharodon megalodon'
- 'Corax egertoni is recombined as Galeocerdo egertoni' according to Gibbes 1849
- 'Corax egertoni is recombined as Carcharias (Prionodon) egertoni'
- 'Elasmobranchii belongs to Pisces'
- 'Galeocerdo laevissimus is recombined as Carcharias laevissimus'
- 'Glyphis subulata is a subjective synonym of Chlamydoselachus balli'
- 'Lamna cuspidata is recombined as Odontaspis cuspidata'
- 'Lamna cuspidata is recombined as Odontaspis cuspidata' according to Eastman 1901
- 'Lamna elegans is recombined as Odontaspis elegans' according to Eastman 1901
- 'Lamna elegans is recombined as Odontaspis elegans'
- 'Lamnidae belongs to Asterospondyli'
- 'Myliobatidae belongs to Tectospondyli'
- 'Myliobatis belongs to Myliobatidae'
- 'Myliobatis frangens belongs to Myliobatis'
- 'Myliobatis vicomicanus is a subjective synonym of Myliobatis gigas'
- 'Notidanidae belongs to Asterospondyli'
- 'Notidanus belongs to Notidanidae'
- 'Notidanus primigenius belongs to Notidanus'
- 'Odontaspis belongs to Lamnidae'
- 'Otodus belongs to Lamnidae'
- 'Oxyrhina belongs to Lamnidae'
- 'Pisces belongs to Vertebrata'
- 'Raja belongs to Rajidae'
- 'Rajidae belongs to Tectospondyli'
- 'Selachii belongs to Elasmobranchii'
- 'Sphyrna magna is recombined as Carcharias magna'
- 'Sphyrna prisca belongs to Sphyrna'
- 'Sphyrna prisca eastmani belongs to Sphyrna prisca'
- 'Squatina belongs to Squatinidae'
- 'Squatina occidentalis belongs to Squatina'
- 'Squatinidae belongs to Tectospondyli'
- 'Tectospondyli belongs to Selachii'