Villain, 1977
From dinoflaj2
Villain, J.-M., 1977: Les Calcisphaerulidae: architectures, calcification de la paroi et phylogenèse. The Calcisphaerulidae: architectures, wall calcification and phylogenesis. Palaeontographica, Abteilung A, v.159, p.139-177, pl.42-47.
