Howe, H. V. (1934). Bitubulogenerina, a Tertiary new genus of Foraminifera. Journal of Paleontology. 8: 417-421.

275623

Howe, H. V.

1934

8: 417-421

Publication

Available for editors   [request]

The genus Tubulogenerina was erected by Cushman in 1927. Since that date three American Tertiary species have been placed under that genus. These are T. aperta Cushman, Oligocene of Mississippi, T. eocenica Cushman and Ellisor, Eocene of Texas, and T. vicksburgensis Howe, Oligocene of Mississippi. The last mentioned species is considered a true Tubulogenerina, but the first two are placed under Bitubulogenerina Howe (new genus). B. vicksburgensis Howe, n. sp., from the Oligocene of Vicksburg, Mississippi, is selected as the genotype. Other new species erected are Bitubulogenerina mauricensis from the Claiborne Eocene at St. Maurice, Louisiana, B. montgomeryensis from the Jackson Eocene at Montgomery, Louisiana; B. hiwanneensis from the Red Bluff Oligocene at Hiwannee, Mississippi; and Tubulogenerina jacksonensis from the Jackson Eocene at Bunker Hill, Louisiana. While the genus Tubulogenerina is represented in the American Tertiary by two species, one upper Eocene in age, the other Oligocene, the genus Bitubulogenerina is represented by at least six species and has a range from Claiborne (Eocene) to Byram marl (Oligocene).

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