Gawor-Biedowa, E. (1987). New benthic foraminifers from the Late Cretaceous of Poland. Acta Palaeontologica Polonica. 32 (1-2): 49-71., available online at (https://www.app.pan.pl/archive/published/app32/app32-049.pdf) page(s): p. 62, pl. 27: 4a, b (holotype).
