Classification of Duffin and Ward 1993
Unr. Neoselachii Compagno 1977
show all | hide all
Superor. Squalomorphii Compagno 1973
hide
Or. †Synechodontiformes Duffin and Ward 1993
hide
Fm. †Orthacodontidae de Beaumont 1960
hide
G. †Sphenodus Agassiz 1843
hide
†Sphenodus alpinus Guembel 1861
†Sphenodus helveticus de Beaumont 1960
†Sphenodus longidens Agassiz 1843
Invalid names: Orthacodus Woodward 1889 [objective synonym]
Fm. †Palaeospinacidae Regan 1906
hide
G. †Synechodus Woodward 1888
hide
†Synechodus egertoni Woodward 1889
†Synechodus occultidens Duffin and Ward 1993
†Synechodus riegrafi Thies 1983
Invalid names: Palaeospinax Egerton 1872 [nomen dubium]