Classification of Niebuhr et al. 2016
Subor. †Ammonitina Hyatt 1889
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Superfm. †Desmoceratoidea Zittel 1895
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Fm. †Pachydiscidae Spath 1922
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G. †Pachydiscus Zittel 1884
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Subg. †Pachydiscus (Pachydiscus) Zittel 1884
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†Pachydiscus (Pachydiscus) haldemsis Schluter 1867
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Invalid names: Ammonites auritocostatus Schlüter 1872 [synonym]
Subor. †Lytoceratina Hyatt 1899
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Subor. †Ancyloceratina Wiedmann 1966
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Superfm. †Scaphitoidea Gill 1871
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Superfm. †Turrilitoidea Gill 1871
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