Gitmez and Sarjeant, 1972
From dinoflaj2
Gitmez, G.U. and Sarjeant, W.A.S., 1972: Dinoflagellate cysts and acritarchs from the Kimmeridgian (Upper Jurassic) of England, Scotland and France. British Museum (Natural History) Geology, Bulletin, v.21, no. 5, p.171-257, pl.1-17.
