Classification of the family Ischnacanthidae

Fm. †Ischnacanthidae Woodward 1891
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G. †Acanthodopsis Hancock and Atthey 1868
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†Acanthodopsis microdon Traquair 1894
†Acanthodopsis wardi Hancock and Atthey 1868
G. †Apateacanthus Woodward 1891
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†Apateacanthus dentatus Hussakof and Bryant 1919
†Apateacanthus peculiaris Hussakof 1913
†Apateacanthus vetustus Clarke 1885
G. †Gomphonchus Gross 1971
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†Gomphonchus hoppei Gross 1947
†Gomphonchus sandelensis Pander 1856
G. †Helenacanthus Bryant 1934
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†Helenacanthus incurvus Bryant 1934
G. †Ictinocephalus Page 1859
G. †Marsdenius Wellburn 1902
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†Marsdenius acuta Wellburn 1902
†Marsdenius summiti Wellburn 1902
G. †Persacanthus Janvier 1977
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†Persacanthus kermanensis Janvier 1977
G. †Uraniacanthus Miles 1973
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†Uraniacanthus spinosus Miles 1973