Classification of Atrops and Alméras 2005
Or. Rhynchonellida Kuhn 1949
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Superfm. †Rhynchonellacea Gray 1848
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Fm. †Dimerellidae Buckman 1917
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Subfm. †Rhynchonellininae Ager 1959
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G. †Caucasella Moisseiev 1934
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†Caucasella rectecostata Uhlig 1881
†Caucasella trigona Quenstedt 1852
Fm. †Wellerellidae Licharew 1956
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Subfm. †Lacunosellinae Smirnova 1963
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G. †Kallirhynchia Buckman 1917
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†Kallirhynchia anglica Buckman 1917
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Invalid names: Kallirhynchia constricta Buckman 1917 [synonym], Kallirhynchia globularis Buckman 1917 [synonym]
G. †Rhynchonella Fischer 1809
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†Rhynchonella acutiloba Deslongchamps 1856
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Invalid names: Rhynchonella ornithopsis Rollier 1917 [synonym], Rhynchonella trigeri Rollier 1917 [synonym]
†Rhynchonella arthaberi Simionescu 1899
†Rhynchonella funiculata Deslongchamps 1856
†Rhynchonella kaminskii Uhlig 1878
†Rhynchonella palma Szajnocha 1879
Or. †Terebratulida Waagen 1883
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Subor. Terebratulidina Waagen 1883
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Superfm. Terebratulacea Gray 1840
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Fm. Zeilleriidae Allan 1940
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Subfm. †Cyclothyridinae Makridin 1955
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Fm. Pygopidae Boulenger 1884
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G. †Linguithyris Buckman 1917
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†Linguithyris bifrons Oppel 1860
†Linguithyris vicaria Szajnocha 1881