Moshkovitz, 1979
From dinoflaj3
Moshkovitz, S., 1979: On the distribution of Schizosphaerella punctulata Deflandre and Dangeard and Schizosphaerella astraea n. sp. in the Liassic section of Stowell Park Borehole (Gloucestershire) and in some other Jurassic localities in England. Eclogae Geologicae Helvetiae, v.72, no.2, p.455-465.