Bralower et al., 1991
From dinoflaj3
Bralower, J.J., Bown, P.R. and Siesser, W.G., 1991: Significance of Upper Triassic nannofossils from the southern hemisphere (ODP Leg 122, Wombat Plateau, N.W. Australia). Marine Micropaleontology, v.17, p.119-154, pl.1-9.