Classification of Rees and Underwood 2008

Fm. †Lonchidiidae Herman 1977
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G. †Lissodus Brough 1935
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†Lissodus leiodus Woodward 1887
†Lissodus leiopleurus Agassiz 1839
G. †Lonchidion Estes 1964
G. †Parvodus Rees and Underwood 2002
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†Parvodus pattersoni Duffin 1985
G. †Egertonodus Maisey 1987
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†Egertonodus duffini Rees and Underwood 2008
Subfm. †Acrodontinae Maisey 1989
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G. †Asteracanthus Agassiz 1836
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†Asteracanthus magnus Agassiz 1838
†Asteracanthus medius Owen 1869
†Asteracanthus tenuis Agassiz 1838
Unr. Euselachii Hay 1902
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Superfm. †Hybodontoidea Agassiz 1834
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Fm. †Hybodontidae Agassiz 1834
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G. †Frangerodus Rees and Underwood 2008
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†Frangerodus lingualis Woodward 1889
Subfm. †Hybodontinae Agassiz 1834
G. †Hybodus Agassiz 1834
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†Hybodus obtusus Agassiz 1839
G. †Planohybodus Rees and Underwood 2008
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†Planohybodus grossiconus Agassiz 1843
†Planohybodus peterboroughensis Rees and Underwood 2008
G. †Secarodus Rees and Underwood 2008
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†Secarodus polyprion Agassiz 1839