Sarjeant, 1984c
From dinoflaj3
Sarjeant, W.A.S., 1984c: A restudy of some dinoflagellate cyst holotypes in the University of Kiel collections. V. The Danian (Palaeocene) holotypes of Walter Wetzel (1952, 1955). Meyniana, v.36, p.121-171, pl.1-8.