Zhuravlev, A. Y.; Krusse, P. D. Treatise Online No. 55: Part E, Revised, Volume 4, Chapter 20B: Cribricyaths and Microfossils of Uncertain Affinity Resembling Cribricyaths. TREON 2012. https://doi.org/10.17161/to.v0i0.4428.