Wolfard and van Erve, 1981
From dinoflaj2
Wolfard, A. and van Erve, A.W., 1981: Crussolia deflandrei nov. gen. et nov. sp., a dinoflagellate cyst from the Jurassic (Callovian-Lower Oxfordian) of Montagne Crussol, Rhône Valley, France. Review of Palaeobotany and Palynology, v.34, p.321-329, pl.1-2.
