Classification of the suborder Anazygidina

Subor. †Anazygidina Copper 1996
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Superfm. †Anazygoidea Davidson 1883
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Fm. †Anazygidae Davidson 1883
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Subfm. †Anazyginae Davidson 1883
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G. †Anazyga Davidson 1882
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†Anazyga aequivalvis Twenhofel 1928
†Anazyga orbis Reed 1917
†Anazyga recurvirostra Hall 1847
Invalid names: Hallina [synonym], Nuria [synonym]
G. †Pusillagutta Misius 1986
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†Pusillagutta gibbera Misius 1986
G. †Zygatrypa
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†Zygatrypa exigua Lindström 1861
†Zygatrypa stenoparva Boucot et al. 1988
G. †Zygospira Hall 1862
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†Zygospira deflecta Hall 1847
†Zygospira fallax Marek and Havlíček 1967
†Zygospira gutta Oraspold 1956
†Zygospira kentuckiensis Hall and Clarke 1895
†Zygospira lebanonensis Cooper 1956
†Zygospira matutina Cooper 1956
†Zygospira meafordensis Foerste 1924
†Zygospira modesta Hall 1847
†Zygospira resupinata Wang 1949
†Zygospira sulcata Howe 1965
Subfm. †Catazyginae Copper 1977
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G. †Catazyga Hall and Clarke 1893
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†Catazyga anticostiensis Billings 1862
†Catazyga arcana Williams 1962
†Catazyga cartieri Cooper and Kindle 1936
†Catazyga headi Billings 1862
†Catazyga hicksi Reed 1905
Invalid names: Eonalivkinia [synonym], Salairella Severgina 1984 [synonym]
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†Pentlandella merriami Sheehan 1982
Subfm. †Tuvaellinae Alikhova 1960
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G. †Tuvaella