Dinoflagellate cysts from the Rabot Member (Santa Marta Formation) of eastern James Ross Island

Sumner, Paul W.. 1992 Dinoflagellate cysts from the Rabot Member (Santa Marta Formation) of eastern James Ross Island. Antarctic Science, 4 (03). 305-310. 10.1017/S0954102092000464

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Official URL: http://dx.doi.org/10.1017/S0954102092000464

Abstract/Summary

Palynomorph assemblages dominated by dinoflagellate cysts are described from seventeen samples from the Rabot Member of the Santa Marta Formation at Ekelöf Point, eastern James Ross Island, Antarctic Peninsula. Although the assemblages are of relatively low diversity, the dinoflagellate cyst taxa recorded indicate a mid to late Campanian (Late Cretaceous) age. Changes in species diversity, dominance and gonyaulacacean ratio suggest a gradually reducing distance from shore during deposition, with a return to more offshore conditions towards the section top. A new species of dinoflagellate cyst, Isabelidinium papillum, is described.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1017/S0954102092000464
ISSN:	0954-1020
Date made live:	23 Jan 2018 12:03 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/519064

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1017/S0954102092000464

ISSN:

0954-1020

Date made live:

23 Jan 2018 12:03 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/519064