Williams, D.M., Sims, P.A.. & Witkowski, J. (2023)

Notes on the rare Cretaceous species Syndetocystis uralensis Strelnikova leading to the description of a new monotypic genus Monoportula P.A.Sims et D.M.Williams nov. gen.

. Phytotaxa 595 (2): 219–224. https://doi.org/10.11646/phytotaxa.595.2.8