Sarjeant, 1984a
From dinoflaj3
Sarjeant, W.A.S., 1984a: A restudy of some dinoflagellate cysts and an acritarch from the Malm (Upper Jurassic) of southwest Germany. Palaeontographica, Abteilung B, v.191, no.5-6, p.154-177, pl.1-4.