Classification of the family Spyroceratidae

Fm. †Spyroceratidae Shimizu and Obata 1935
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G. †Adnatoceras Flower 1939
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†Adnatoceras alaskense Gordon 1957
G. †Anastomoceras Flower 1939
G. †Atahococeras Niko et al. 2000
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†Atahococeras timorense Niko et al. 2000
G. †Bitaunioceras Shimizu and Obata 1936
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†Bitaunioceras buckhornense Niko et al. 2018
†Bitaunioceras inordinatum Shimanskiy 1996
†Bitaunioceras krotowi Dewingthal 1951
†Bitaunioceras texanum Miller and Youngquist 1947
†Bitaunioceras undulatum Niko and Nishida 1987
†Bitaunioceras zonatum Gemmellaro 1889
G. †Cancellspyroceras Kröger 2008
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†Cancellspyroceras loricatum Barrande 1868
G. †Cryptorthoceras Flower 1939
G. †Cyrtospyroceras Flower 1938
G. †Cyrtothoracoceras Turner 1964
G. †Diagoceras Flower 1936
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†Diagoceras aptum Hall 1876
G. †Euloxoceras Miller et al. 1933
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†Euloxoceras angustius Gordon 1964
†Euloxoceras greenei Miller et al. 1933
†Euloxoceras greeni Dunbar and Condra 1933
G. †Fusicoceras Flower 1939
G. †Geisonoceroides Flower 1939
G. †Gordonoceras Teichert and Glenister 1953
G. †Lopingoceras Shimanskiy 1962
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†Lopingoceras acutanolatum Zhao et al. 1978
†Lopingoceras bicinctum Abich 1878
†Lopingoceras guangdeense Zhao et al. 1978
†Lopingoceras lopingense Stoyanow 1910
G. †Palaeospyroceras Chen et al. 1981
G. †Palmeroceras Flower 1936
G. †Petryoceras Flower 1939
G. †Pseudocycloceras Barskov 1959
G. †Reticycloceras Gordon 1960
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†Reticycloceras croneisi Gordon 1960
†Reticycloceras girtyi Gordon 1964
G. †Sceptrites Flower 1939
G. †Shikhanoceras Shimanskiy 1954
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†Shikhanoceras sphaerophorum Shimanskiy 1954
G. †Spyroceras Hyatt 1884
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†Spyroceras baffinense Schuchert 1900
†Spyroceras bilineatum Hall 1847
†Spyroceras boreale Foerste and Savage 1927
†Spyroceras chambliense Foerste 1924
†Spyroceras crotalum Hall 1879
†Spyroceras cylindratum Foerste 1932
†Spyroceras cyrtopatronus Kröger 2008
†Spyroceras damesi Krause 1877
†Spyroceras ferum Billings 1866
†Spyroceras fukuijense Niko 1996
†Spyroceras giganteum Flower 1945
†Spyroceras latepatronus Kröger 2008
†Spyroceras middlevillense Foerste 1928
†Spyroceras olorus Hall 1879
†Spyroceras patronus Barrande 1866
†Spyroceras perlaeve Strand 1934
†Spyroceras persculptum Ruedemann 1926
G. †Suloceras Manda 2001
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†Suloceras longipulchrum Kröger 2008
†Suloceras pulchrum Barrande 1866
G. †Tripteroceroides Miller and Furnish 1940