• Globorotalia danvillensis Howe and Wallace, 1932:74, pl. 10, figs. 9a-c [upper Eocene, Jackson Group, Danville Landing on the Ouachita River, Catahoula Parish, Louisiana].
• Dipsidripella danvillensis (Howe and Wallace).—Huber and others, 2006:496-501, pl. 16.8, figs. 1-3 (reillustration by SEM of holotype of Globorotalia inconspicua aculeata Jenkins), figs. 4, 5, 7, 14 (reillustration by SEM of holotype and topotypes of Globorotalia danvillensis Howe and Wallace), fig. 6 (reproduction of holotype image of Dipsidripella hodisensis Brotea), figs. 8, 10, 11 [upper Eocene Zone E14/15, ODP Site 150X, Atlantic City Borehole, New Jersey], fig. 7 [upper Eocene Zone E15/16, Shubuta Clay, Wayne County, Mississippi], figs. 9, 12, 13, 16, 17 [upper Eocene Yazoo Fm., Cynthia, Mississippi], fig. 15 [Oligocene nannofossil Zone NP22, Wachsberg unit, Ottenthal, Austria].—Miller and others, 2008, figs. 6, O-Q [upper Eocene Zone E16, St. Stephens Quarry borehole, Alabama].
• Globigerinella evoluta Subbotina 1960:58, pl. 8a, b (holotype); 9a, b (topotype) [upper Oligocene (Chattian), Polyanitsa Fm., Velikiy Lukavets River, Ciscarpathian region, Ukraine].
• Globorotalia inconspicua Howe subspecies aculeata Jenkins, 1965:1118-1120, fig. 13, nos. 119-125 [middle – upper Eocene, Globigerinatheka index index through Globorotalia (Testacarinata) inconspicua Zones, Hampden Beach, South Island, New Zealand].
• Globorotalia aculeata Jenkins. Jenkins and Srinivasan, 1986:807, pl. 2, fig. 4 [upper Eocene, Globorotalia aculeata Zone, DSDP Site 592, Lord Howe Rise, southwest Pacific Ocean].—Poore and Bybell, 1988:17, pl. 3, figs. 7-9 [upper Eocene, Turborotalia cunialensis Zone, U. S. Geological Survey ACGS #4 borehole, Mays Landing, New Jersey Coastal Plain].
• “Tenuitella” aculeata (Jenkins). Malumián, 1990:382 [Eocene, Man Aike Fm., Santa Cruz Province, YCF SEC-7 borehole].
• “Acarinina” aculeata (Jenkins). Nocchi and others, 1991:266, pl. 4, figs. 27, 28 [upper Eocene Zone P15, ODP Hole 703A, Meteor Rise, southern South Atlantic Ocean].
• Praepararotalia aculeata (Jenkins). Liu and others, 1998 (partim; not pl. 1, fig. 10 = Praepararotalia inconspicua (Jenkins):16-17, pl. 1, figs. 11-13 [middle Eocene, Claiborne Member, Cook Mountain Fm., Couley Creek, Winn Parish, Louisiana].
• Dipsidripella hodisensis Brotea, 1995:31-32, pl. 1, figs. 1-9 [uppermost Eocene – lowermost Oligocene, upper Brebi Marls Fm., Hodis Salai district, northern Transylvania, Romania].

See the Atlas of Eocene Planktonic Foraminifera (Huber and others, 2006) for previous discussion. Here we add Globigerinella evoluta Subbotina in synonymy following new observations of the type material (see Chapter 20, this volume). We include within our concept forms with four to six chambers in the final whorl, forms with or without supplementary apertures, and forms with globular or radially extended chambers. Clearly there is much scope for taxonomic subdivision should detailed morphometric, stratigraphic, and biogeographic studies be undertaken. [Pearson et al. 2018]

Globorotalia inconspicua aculeata Jenkins is considered a junior synonym of Dipsidripella danvillensis based on morphologic similarity of the two holotypes (Pl.16.8, Figs. 1-5) and because of nomenclatural priority. Dipsidripella hodisensis Brotea, the type species of Dipsidripella, also falls within the range of morphologic variability of D. danvillensis and is therefore considered a junior synonym (see holotype on Pl. 16.8, Fig. 6). Liu and others (1998) transferred Jenkins’s aculeata ( =danvillensis) to their new genus Praepararotalia based on the more areal, extraumbilical position of the aperture and similarity in shallow water biofacies distribution. This taxonomic reassignment is no longer considered appropriate because the other species that Liu and others (1998) assigned to Praepararotalia show significant asymmetry in the distribution of surface pustules, with greatest pustule concentrations near the umbilicus, and, in the case of P. inconspicua, coalescence of pustules to form costae on the chamber surface or a peripheral carina. [Huber et al. 2006]

Kucera (1994) compared ontogenetic patterns morphology and microstructure for modern microperforate species and lower Oligocene specimens of D. danvillensis (designated as Turborotalia? aculeata) collected from the Pouzdrany Marl in the Polish Carpathians. Results from his measurements of adult specimens demonstrate an overlapping but larger range of pore size in danvillensis (0.5-2.0 ½m) relative to modern microperforates (0.5-0.8 ½m) and a much lower concentration of pores (11-17 pores/½m2 in danvillensis vs. 160-180 pores/½m2 in microperforates). In his species abundance counts he found a strongly inverse relationship between the abundance of danvillensis and the abundance of large globigerinids. As an example, samples with 24-42% larger globigerinids contained less than 2% danvillensis, whereas samples with >85% danvillensis contained 0% larger globigerinids. In the shallowest, lowest salinity samples, Kucera found that D. danvillensis is the only foraminifer species present with a planktonic test morphology. [Huber et al. 2006]

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