Smelror and Århus, 1989
From dinoflaj3
Smelror, M. and Århus, N., 1989: Emendation of the dinoflagellate cyst genus Crussolia Wolfard & Van Erve 1981, and description of C. dalei n. sp. from the Callovian of Svalbard. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte, no.1, p.37-46.