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IRMNG source details
Article title: Middle and Upper Ordovician symmetrical univalved mollusks (Monoplacophora and Bellerophontina) of the Cincinnati Arch region.
180308
Publication
Date action by
Paracyrtolites Wahlman, 1992 † accepted as Cyrtolites Conrad, 1838 † (original description)
Undulabucania Wahlman, 1992 † (original description) |
