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Marquardt, G.C., Bicudo, D.C., Bicudo, C.E.D.M., Ledru, M.-P., Ector, L. and Wetzel, C.E. 2021. Pseudostaurosira crateri sp. nov. (Fragilariaceae, Bacillariophyta), a new small araphid, fossil diatom species from the Pleistocene (Atlantic Forest, Brazil). Phytotaxa. 496, 2 (Apr. 2021), 105–120. DOI:https://doi.org/10.11646/phytotaxa.496.2.1.