Classification of Horný 1962
G. †Cyclocyrtonella Horný 1962
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†Cyclocyrtonella advena Perner 1903
†Cyclocyrtonella eremita Perner 1903
G. †Tropidodiscus Meek and Worthen 1866
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Superfm. †Bellerophontacea M'Coy 1851
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Subfm. †Sinuitinae Dall 1913
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G. †Strangulites Horný 1962
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†Strangulites discoides Reed 1921
†Strangulites maccallumi Reed 1921
†Strangulites sphaeroidalis Reed 1921
†Strangulites strangulatus Perner 1903
†Strangulites subrectangularis Reed 1921
Superfm. †Bellerophontoidea M'Coy 1851
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Fm. †Salpingostomatidae Koken and Perner 1925
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Fm. †Euphemitidae Knight 1956
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Subfm. †Bellerophontinae M'Coy 1851
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Subfm. †Grandostomatinae Horný 1962
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