Planothidium scrobiculatum sp. nov. (Bacillariophyta), a new monoraphid diatom from freshwater Pleistocene deposits of South America
G.C. Marquardt, D.C. Bicudo, C.E.M. Bicudo, M.-P. Ledru, L. Ector, and C.E. Wetzel
Fottea, vol. 21, no. 1, pp. 53-61, 2021