Palmieri, V. (1988). Globivalvulinid Foraminifera from the Permian of Queensland. Alcheringa: An Australasian Journal of Palaeontology. 12(1): 27-47., available online at (https://doi.org/10.1080/03115518808618994) page(s): p. 39, figs. 12F-I. F, lateral view, G, spiral-lateral view, H, umbilical view, x 125; I, x 600, enlargement of umbilical area showing pore openings in sutural position, location indicated by arrow in H, holotype.