Classification of Kennedy et al. 1997

Or. †Ammonoidea Zittel 1884 [ammonite]
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Subor. †Ancyloceratina Wiedmann 1966
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Superfm. †Scaphitaceae Gill 1871
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Fm. †Scaphitidae Gill 1871
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Subfm. †Scaphitinae Gill 1871
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G. †Scaphites Parkinson 1811
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Subg. †Scaphites (Scaphites) Parkinson 1811
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Superfm. †Turrilitaceae Gill 1871
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Fm. †Baculitidae Gill 1871
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G. †Baculites Lamarck 1799
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†Baculites vaalsensis Kennedy and Jagt 1995
†Baculites vertebralis Lamarck 1801
Fm. †Diplomoceratidae Spath 1926
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Subfm. †Diplomoceratinae Spath 1926
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G. †Glyptoxoceras Spath 1925
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†Glyptoxoceras aquisgranense Schlüter 1872
Subor. †Ammonitina Hyatt 1889
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Superfm. †Acanthocerataceae de Grossouvre 1894
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Fm. †Collignoniceratidae Wright and Wright 1951
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Subfm. †Texanitinae Collignon 1948
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G. †Menabites Collignon 1948
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Subg. †Menabites (Bererella) Collignon 1948
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Subg. †Menabites (Menabites) Collignon 1948
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Superfm. †Hoplitaceae Douvillé 1890
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Fm. †Placenticeratidae Hyatt 1900
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G. †Placenticeras Meek 1876
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†Placenticeras placenta DeKay 1828
Subcl. †Ammonoidea Zittel 1884 [ammonite]
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Or. †Ammonitida Haeckel 1866 [ammonite]