Endemism and heterochroneity in the Late Cretaceous (Campanian) to Paleocene palynofloras of Seymour Island, Antarctica: implications for origins, dispersal and palaeoclimates of southern floras
- 1 January 1989
- journal article
- Published by Geological Society of London in Geological Society, London, Special Publications
- Vol. 47 (1) , 107-119
- https://doi.org/10.1144/gsl.sp.1989.047.01.09
Abstract
Late Cretaceous (Campanian) to Paleocene nearshore marine-coastal/deltaic sediments (López de Bertodano and Sobral Formations) from Seymour Island, Antarctica, contain abundant marine and terrestrial palynomorphs. Marine dinoflagellate cysts, and spores and pollen of land plants from 510 samples exhibit varying levels of provincialism: (1) Seymour Island-James Ross Island basin endemic species; (2) Antarctic endemic species; (3) Weddellian Province (southern South America-Western Antarctica-New Zealand-southeastern Australia) species; (4) Austral species; and (5) Cosmopolitan species.Keywords
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