Mehrotra and Sarjeant, 1986
From dinoflaj3
Mehrotra, N.C. and Sarjeant, W.A.S., 1986: Early to middle Cretaceous dinoflagellate cysts from the Periyavadavadi Shallow Well-1, Cauvery Basin, India. Geobios, v.19, no.6, p.705-753, pl.1-11.