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IRMNG source details
Mem. Geol. Surv. Canada, No. 154
162758
Publication
Date action by
Asaphiceras Foerste, 1928 † (original description)
Eotrimeroceras Foerste, 1928 † (original description) Hercocyrtoceras Foerste, 1928 † (original description) Hyperoceras Foerste, 1928 † (original description) Polygrammoceras Foerste, 1928 † (original description) |
