Tremastegina senni (Cushman, 1945)

Опис:

Mitchell S.F., Robinson E., Özcan E., Jiang M.M. & Robinson N. (2022).- A larger benthic foraminiferal zonation for the Eocene of the Caribbean and central American region.- Carnets Geol., Madrid, vol. 22, no. 11, p. 409-565. , available online at (https://doi.org/10.2110/carnets.2022.2211)  Fig. 18: Tremastegina senni (Cushman in Vaughan, 1919). 1-2 (USNM.MO.625411), holotype (1, ventral; 2, dorsal), Senn locality S.34C, Murphys Beds, Upper Scotland Group, Barbados (image from Smithsonian websire, used by permission). 3-5 (USNM.0001), Senn locality 34C, Murphys Beds, Upper Scotland Group, Barbados. Note that there are one or two stolons connecting the 'dorsal' chambers (which are separated from the ventral, stellar chamberlets by a stolon with counter septum) and a string of stolons connecting the ventral stellar chamberlets. Also note the finely perforate test.