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Fossil collection records
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Classification of Kurihara et al. 2016
Subor. †
Ancyloceratina
Wiedmann 1966
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Superfm. †
Turrilitoidea
Gill 1871
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Fm. †
Diplomoceratidae
Spath 1926
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G. †
Diplomoceras
Hyatt 1900
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†
Diplomoceras cylindraceum
Defrance 1816