Protoperidiniacean dinoflagellate cysts were identified in 19 of 28 samples from two sites on the Antarctic Peninsula continental rise. Cysts are most common in the lower Pliocene and upper Miocene and include species of Brigantedinium, Lejeunecysta, and Selenopemphix. Autotrophic gonyaulacacean dinoflagellate cysts are very rare in the samples. The dominance of taxa derived from assumed heterotrophic dinoflagellate motile forms may indicate high nutrient content in the surface waters, which sustained a considerable diatom population.
1Pudsey, C.J., and Harland, R., 2001. Data report: Dinoflagellate cyst analysis of Neogene sediments from Sites 1095 and 1096, Antarctic Peninsula continental rise. In Barker, P.F., Camerlenghi, A., Acton, G.D., and Ramsay, A.T.S. (Eds.), Proc. ODP, Sci. Results, 178 [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/178_SR/chap_02/chap_02.htm>. [Cited YYYY-MM-DD]
2British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, United Kingdom. cjp@pcmail.nerc-bas.ac.uk
3DinoData Services, 50, Long Acre, Bingham, Nottingham NG13 8AH United Kingdom.
Initial receipt:
14 August 2000
Acceptance: 5 February 2001
Web publication: 7 June 2001
Ms 178SR-208