Original Description Test wall microperforate with pores surrounded by small-sized perforation cones; pustules may be present in the umbilical region. Test small, with early hedbergellid stage and higher trochospire in the adult. Chambers coiled in a variable trochospire with 4.5–5.0 chambers in the initial whorl and 3–4 chambers in the final whorl. Aperture a low interiomarginal, umbilical-extraumbilical arch without periapertural structures Size: Etymology: The root of the Greek prefix pseudos, meaning lie or false, is added to the pre-existing genus name Guembelitria Extra details from original publication Remarks. Pseudoguembelitria differs from Hedbergella by having a higher trochospire, more weakly developed perforation cones on the test surface, and fewer chambers in the final whorl. It differs from Guembelitria Cushman, 1933 (late Campanian–early Paleocene) and Archaeoguembelitria Georgescu, 2009 (late Albian–early Turonian) by the early hedbergellid stage and variable trochospire, lower in the early stage and higher in the adult. It differs from Gubkinella (considered by Loeblich and Tapan  to be a benthic foraminifer) in having perforation cones, more-inflated chambers, and a higher-arched aperture, and in lacking a lip.
Stratigraphic range. Upper Aptian. Geographic distribution. Found only at Blake Nose ODP Holes 1049A, 1049B, and 1049C in the subtropical western North Atlantic. Editors' Notes
Huber, B. T. & Leckie, R. M. (2011). Planktic foraminiferal species turnover across deep-sea Aptian/Albian boundary sections. Journal of Foraminiferal Research. 41: 53-95. gs
Pseudoguembelitria compiled by the pforams@mikrotax project teamviewed: 7-12-2022