Classification of Landman and Cobban 2003

Subor. †Ammonitina Hyatt 1889
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Superfm. †Acanthocerataceae de Grossouvre 1894
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Fm. †Sphenodiscidae Hyatt 1900
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G. †Coahuilites Böse 1928
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†Coahuilites sheltoni Böse 1928
G. †Sphenodiscus Meek 1871
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†Sphenodiscus pleurisepta Conrad 1857
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. †Hoploscaphites Nowak 1911
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†Hoploscaphites birkelundae Landman and Waage 1993
G. †Jeletzkytes Riccardi 1983
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†Jeletzkytes dorfi Landman and Waage 1993
Superfm. †Turrilitaceae Gill 1871
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Fm. †Baculitidae Gill 1871
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†Trachybaculites columna Morton 1834