Harland and Pudsey, 2002
From dinoflaj3
Harland, R. and Pudsey, C.J., 2002: Protoperidiniacean dinoflagellate cyst taxa from the Upper Miocene of ODP Leg 178, Antarctic Peninsula. Review of Palaeobotany and Palynology, v.120, p.263-284, pl.1-6.