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Abstract
Vulcanella hannae gen. et sp. nov. is described and illustrated from the upper Eocene-lower Oligocene. This taxon has been illustrated by Gombos & Ciesielski (1983) as “species uncertain”, by Harwood (1989) as Cotyledon fogedi (Hendey) Harwood and by Barron & Mahood (1993) as Tumulopsis fogedi Hendey. The justification for establishing the new genus is supported by examination of the generitypes of Tumulopsis Hendey (T. fogedi) and Acanthodiscus Pantocsek (A. rugosus Pantocsek), together with species associated with or possibly related to the newly described taxon. Nomenclatural problems are discussed.
