Evitt, W.R., Clarke, R.F.A. and Verdier, J.-P.,
1967
Dinoflagellate studies III. Dinogymnium acuminatum n. gen., n.sp. (Maastrichtian) and other fossils formerly referable to Gymnodinium Stein.
Stanford University Publications, Geological Sciences, v.10, no.4, p.1-27, pl.1-3.