Opinions from C. J. Underwood and J. Rees 2002
- 'Asteracanthus semiverrucosus is a nomen dubium'
- 'Asteracanthus verrucosus is a nomen dubium'
- 'Asterodermus is a nomen dubium'
- 'Asterodermus platypterus is a nomen dubium'
- 'Belemnobatis belongs to Rhinobatoidei'
- 'Belemnobatis variabilis belongs to Belemnobatis'
- 'Egertonodus belongs to Hybodontidae'
- 'Hybodontes is corrected as Hybodontidae and belongs to Hybodontoidea'
- 'Hybodus belongs to Hybodontidae'
- 'Hybodus basanus is recombined as Egertonodus basanus'
- 'Hybodus ensensis belongs to Hybodus' according to Woodward 1916
- 'Hybodus ensensis belongs to Hybodus'
- 'Hybodus parvidens is recombined as Polyacrodus parvidens' according to Cappetta 1987
- 'Hybodus parvidens is recombined as Polyacrodus parvidens'
- 'Hybodus strictus is a nomen dubium'
- 'Lissodus belongs to Polyacrodontidae'
- 'Lissodus rugianus belongs to Lissodus' according to Ansorge 1990
- 'Lissodus rugianus is recombined as Polyacrodus rugianus'
- 'Lonchidion belongs to Polyacrodontidae'
- 'Lonchidion breve belongs to Lonchidion' according to Patterson 1966
- 'Lonchidion breve crenulatum belongs to Lonchidion breve' according to Patterson 1966
- 'Lonchidion breve crenulatum is recombined as Lissodus crenulatus' according to Duffin 1985
- 'Lonchidion breve crenulatum is recombined as Lonchidion crenulatum'
- 'Lonchidion heterodon belongs to Lonchidion' according to Patterson 1966
- 'Lonchidion heterodon is recombined as Polyacrodus heterodon'
- 'Lonchidion inflexum belongs to Lonchidion'
- 'Polyacrodontidae belongs to Hybodontoidea'
- 'Polyacrodus belongs to Polyacrodontidae'
- 'Rhinobatoidei belongs to Rajiformes'
- 'Rhinobatos picteti is recombined as Belemnobatis picteti'
- 'Spathobatis belongs to Rhinobatoidei'