Deflandre, 1939a
From dinoflaj3
Deflandre, G., 1939a: Microplancton des mers jurassiques conservé dans les marnes de Villers-sur-Mer (Calvados). Étude liminaire et considérations générales. Station zoologique de Wimereux, Travaux, v.13, p.147-200, pl.5-11. (Cover date 1938, issue date January 1939, according to Farr et al., 1979, p.1145; Riding and Schmidt, 2009, have contended that the article was effectively published in 1938, but for now we prefer to follow Farr et al.'s assessment.)