Naugolnykh Sergey V. Kukarskih Vladimir V. Solodyankin Dmitrij V. A new find of the foliar seed-bearing organ in the Lower Permian deposits of the Urals in a context of florogenetical links between Late Paleozoic and Mesozoic floras
Naugolnykh Sergey V. New data on the peltaspermaceous pteridosperms of Angaraland in paleoecological and taxonomical aspects