Classification of the genus Tollia
G. †Tollia Pavlow 1914
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Subg. †Tollia (Neocraspedites) Spath 1923
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†Neocraspedites giganteus Imlay 1960
†Tollia (Neocraspedites) greenlandica Donovvan 1953
†Tollia (Neocraspedites) pentagonalis Alsen 2006
†Tollia (Neocraspedites) piaseckii Alsen 2006
†Tollia (Neocraspedites) rutila Alsen 2006
†Tollia (Neocraspedites) semilaevis Koenen 1902
†Tollia (Neocraspedites) semisulcata Koenen 1902
†Tollia (Neocraspedites) undulatocostata Donovan 1953
†Tollia mutabilis Stanton 1895
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Invalid names: Dichotomites burgeri Anderson 1938 [synonym], Dichotomites gregerseni Anderson 1938 [synonym], Dichotomites tehamaensis Anderson 1938 [synonym]
Invalid names: Neotollia [synonym]