Classification of the family Terebrataliidae
Fm. Terebrataliidae Richardson 1975
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Subfm. †Gemmarculinae Elliott 1947
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G. †Arenaciarcula Elliott 1959
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†Arenaciarcula beaumonti d'Archiac 1847
†Arenaciarcula fittoni Meyer 1864
G. †Choristothyris
G. †Gemmarcula
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†Gemmarcula arizonensis Cooper 1955
†Gemmarcula canaliculata Roemer and d'Archiac 1840
†Gemmarcula doddsae Craig 1999
†Gemmarcula menardi Lamarck 1819
†Gemmarcula plattenwaldensis Sulser and Friebe 2002
Invalid names: Trifidarcula Elliott 1959 [synonym]
G. †Helvetella
G. †Ismenia King 1850
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†Ismenia pectunculoides Schlotheim 1820
†Ismenia perillustris Smirnova 1972
†Ismenia tricostata Owen 1976
Subfm. Terebrataliinae Richardson 1975
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G. Coptothyris Jackson 1918
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Coptothyris adamsi Davidson 1871
†Coptothyris excelsa Yokoyama 1923
†Coptothyris excelsa koyamai Makiyama 1927
Invalid names: Pseudesia Dall 1920 [synonym], Thomsonia Jackson 1916 [replaced]
G. Terebratalia Beecher 1893
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†Terebratalia arnoldi Hertlein and Grant IV 1944
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†Terebratalia arnoldi etchegoini Hertlein and Grant IV 1944
†Terebratalia arnoldi quaylei Hertlein and Grant IV 1944
†Terebratalia asanoi Nomura and Hatai 1936
†Terebratalia batequia Sandy et al. 1995
†Terebratalia bialata Nomura and Hatai 1936
Terebratalia coreanica Adams and Reeve 1850
Terebratalia gouldii Dall 1891
†Terebratalia hayasakai Hatai 1939
†Terebratalia hemphilli Dall 1902
†Terebratalia innaiensis Hayasaka 1922
†Terebratalia jordanni Hertlein and Grant IV 1944
†Terebratalia kennedyi Dall 1874
†Terebratalia lata Dall 1921
Terebratalia occidentalis Dall 1871
Terebratalia occidentalis obsoleta Dall 1891
†Terebratalia pacifica Hatai 1936
†Terebratalia radiata Hatai 1936
†Terebratalia sendaica Hatai 1936
†Terebratalia smithi Arnold 1903
†Terebratalia tenuis Hayasaka 1922
Terebratalia transversa Sowerby 1846
Terebratalia transversa caurina Gould 1850
Subfm. †Trigonoseminae Elliott 1965
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G. †Dereta Elliott 1959
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†Dereta incerta Davidson 1852
†Dereta pectita Sowerby 1816
†Dereta pectita ballardensis Owen 1988
G. †Terebrirostra