Linking upper Silurian terrestrial and marine successions : alynological study from Skåne, Sweden

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T1 - Linking upper Silurian terrestrial and marine successions : alynological study from Skåne, Sweden

AU - Mehlqvist, Kristina

AU - Larsson, Kent

AU - Vajda, Vivi

PY - 2014

Y1 - 2014

N2 - We have performed a palynostratigraphic study on miospore assemblages from near-shore marine Silurian sedimentary rocks of Skåne, southern Sweden. The material includes both drillcore (from Klintaborrningen 1 and Bjärsjölagårdborrningen 2) and outcrop samples from various localities in Skåne. Well- preserved spore assemblages were identified. Long ranging species with a global distribution dominate the spore assemblages, including Ambitisporites sp., Dyadospora sp., Laevolancis sp., and Tetrahedraletes sp. and complemented with key taxa including Emphanisporites neglectus, Hispanaediscus lamontii, Hispanaediscus verrucatus, Scylaspora scripta, Synorisporites libycus and Synorisporites tripapillatus. Based on biostratigraphical schemes for early land plant spores, the studied sedimentary rocks of the cores Klintaborrningen 1 and Bjärsjölagårdborrningen 2 are interpreted as late Silurian in age, spanning Ludlow to Přídolí. The spore assemblages are compared and correlated to marine fossil schemes including those of conodonts, chitinozoans, graptolites and tentaculitids. Additionally, relative abundance data of specific spore taxa have been used for correlation between the drillcores and the outcrops.

AB - We have performed a palynostratigraphic study on miospore assemblages from near-shore marine Silurian sedimentary rocks of Skåne, southern Sweden. The material includes both drillcore (from Klintaborrningen 1 and Bjärsjölagårdborrningen 2) and outcrop samples from various localities in Skåne. Well- preserved spore assemblages were identified. Long ranging species with a global distribution dominate the spore assemblages, including Ambitisporites sp., Dyadospora sp., Laevolancis sp., and Tetrahedraletes sp. and complemented with key taxa including Emphanisporites neglectus, Hispanaediscus lamontii, Hispanaediscus verrucatus, Scylaspora scripta, Synorisporites libycus and Synorisporites tripapillatus. Based on biostratigraphical schemes for early land plant spores, the studied sedimentary rocks of the cores Klintaborrningen 1 and Bjärsjölagårdborrningen 2 are interpreted as late Silurian in age, spanning Ludlow to Přídolí. The spore assemblages are compared and correlated to marine fossil schemes including those of conodonts, chitinozoans, graptolites and tentaculitids. Additionally, relative abundance data of specific spore taxa have been used for correlation between the drillcores and the outcrops.

KW - early land-plants

KW - Baltica

KW - conodonts

KW - chitinozoans

KW - biostratigraphy

U2 - 10.1016/j.revpalbo.2013.12.001

DO - 10.1016/j.revpalbo.2013.12.001

M3 - Article

VL - 202

SP - 1

EP - 14

JO - Review of Palaeobotany and Palynology

JF - Review of Palaeobotany and Palynology

SN - 0034-6667

ER -