Classification of Frye 1982
Subcl. Nautiloidea Agassiz 1847 [nautiloid]
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Or. †Ascoceratida Kuhn 1949
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Fm. †Ascoceratidae Barrande 1867
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Subfm. †Ascoceratinae Barrande 1867
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G. †Schuchertoceras Miller 1932
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†Schuchertoceras bodense Frye 1982
†Schuchertoceras troedssoni Foerste 1929
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Invalid names: Schuchertoceras ringerikiense Strand 1934 [synonym]
Or. †Tarphyceratida Flower and Kummel, Jr. 1950
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Fm. †Apsidoceratidae Hyatt 1884
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G. †Charactoceras Foerste 1924
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†Charactoceras kallholnense Frye 1982
†Charactoceras raettvikense Frye 1982
†Charactoceras suecicum Frye 1982
†Charactoceras triangulum Frye 1982
Invalid names: Charactocerina Foerste 1935 [synonym]
Fm. †Lituitidae Philips 1848
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