An Early Permian palynoflora from Milorgfjella, Dronning Maud Land, Antarctica
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An Early Permian palynoflora from Milorgfjella, Dronning Maud Land, Antarctica. / Larsson, Kent; Lindström, Sofie; Guy-Ohlson, Dorothy.
In: Antarctic Science, Vol. 2, No. 4, 1990, p. 331-344.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - An Early Permian palynoflora from Milorgfjella, Dronning Maud Land, Antarctica
AU - Larsson, Kent
AU - Lindström, Sofie
AU - Guy-Ohlson, Dorothy
PY - 1990
Y1 - 1990
N2 - A preliminary palynological study of Beacon Supergroup sedimentary rocks exposed at Milorgfjella, Dronning Maud Land, has yielded a relatively rich and well preserved palynoflora dominated by spores and pollen grains, but also including acritarchs and green algae. The palynoflora is dominated by the pterophyte spores Punctatisporites gretensis, Punctatisporites parvus, Granulatisporites spp., Microbaculispora tentula Horriditriletes spp. and Verrucosisporites andersonii, and the gymnosperm pollen grains Plicatipollenites spp. and Cannanoropollis spp. Also present are the lycopod spore Jayantisporites pseudozonatus, the praecolpate pollen grain Marsupipollenites striatus and the monocolpate pollen grain Cycadopites cymbatus. The palynoflora indicates freshwater conditions or, at least, a major freshwater influence on the depositional environment. Comparison of the palynoflora with others from Gondwana suggests an Early Permian (Asselian–Sakmarian) age.
AB - A preliminary palynological study of Beacon Supergroup sedimentary rocks exposed at Milorgfjella, Dronning Maud Land, has yielded a relatively rich and well preserved palynoflora dominated by spores and pollen grains, but also including acritarchs and green algae. The palynoflora is dominated by the pterophyte spores Punctatisporites gretensis, Punctatisporites parvus, Granulatisporites spp., Microbaculispora tentula Horriditriletes spp. and Verrucosisporites andersonii, and the gymnosperm pollen grains Plicatipollenites spp. and Cannanoropollis spp. Also present are the lycopod spore Jayantisporites pseudozonatus, the praecolpate pollen grain Marsupipollenites striatus and the monocolpate pollen grain Cycadopites cymbatus. The palynoflora indicates freshwater conditions or, at least, a major freshwater influence on the depositional environment. Comparison of the palynoflora with others from Gondwana suggests an Early Permian (Asselian–Sakmarian) age.
U2 - 10.1017/s0954102090000463
DO - 10.1017/s0954102090000463
M3 - Journal article
VL - 2
SP - 331
EP - 344
JO - Antarctic Science
JF - Antarctic Science
SN - 0954-1020
IS - 4
ER -
ID: 290452714