Proterozoic and early Palaeozoic microfossils in the Karikkoselkä impact crater, central Finland [PDF]
Bulletin of the Geological Society of Finland, 2001 The Karikkoselkä impact crater is located at Petäjävesi (Lat. 62°13.3' N, Long. 25°14.7' E), in central Finland. The crater is filled with impact-generated breccias and redeposited sedimentary rock yielding microfossils.
A. Uutela
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Salinity changes and anoxia resulting from enhanced run-off during the late Permian global warming and mass extinction event [PDF]
Climate of the Past, 2018 The late Permian biotic crisis had a major impact on marine and terrestrial environments. Rising CO2 levels following Siberian Trap volcanic activity were likely responsible for expanding marine anoxia and elevated water temperatures.
E. E. van Soelen +2 more
doaj +1 more source
Extent of the northern Baltic Sea during the Early Palaeozoic Era - new evidence from Ostrobothnia, western Finland [PDF]
Bulletin of the Geological Society of Finland, 1998 This study reports new evidence of the extent of the northern Baltic Sea during the Cambrian and Ordovician periods. A drillcore (DC304) from the Lappajärvi impact crater, western Finland, and erratics from the surrounding area were studied for ...
A. Uutela
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Lower Ordovican acritarchs from successions in England and North Wales. [PDF]
, 1979 One hundred and thirty eight acritarch taxa are described from the organic residues of samples collected in North Wales, Shropshire, and the Lake District. The species occur in one or more of 16 microfloral assemblages, selected from 88 prepared samples.
Booth, Graham Arthur
core +6 more sources
Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2016 New palynological analysis of samples from 13 offshore wells on the Canadian Margin and six wells on the West Greenland Margin has led to a new event biostratigraphic framework for Cretaceous–Cenozoic strata of the Labrador Sea – Davis Strait – Baffin ...
Robert A. Fensome +2 more
doaj
Petroleum Exploration and Development, 2017 The source rock quality, organic pore structure, occurrence state and sealing mechanisms of shale gas in the Ordovician Wufeng – SilurianLongmaxi Formation (O3w-S1l), Fuling region, Sichuan Basin were studied using a series of techniques including ultra ...
Tenger BORJIGIN +9 more
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Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway - Fig. 5 [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2016 New palynological analysis of samples from 13 offshore wells on the Canadian Margin and six wells on the West Greenland Margin has led to a new event biostratigraphic framework for Cretaceous– Cenozoic strata of the Labrador Sea – Davis Strait – Baffin ...
Robert A. Fensome +2 more
doaj
Biostratigraphy and palaeoecology of marine microphytoplankton cysts from Member 4 of the Mila Formation, Mila Kuh, eastern Alborz [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2019 Well preserved and diverse organic-walled marine microphytoplankton cysts (acritarchs sensu lato) occur in Member 4 (comprising mostly of fine-grained clastics with thin carbonate intercalations) of the Mila Formation at the type section, southwestern ...
Navid Navidi-Izad, Hossein Hashemi
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Cretaceous and Cenozoic dinoflagellate cysts and other palynomorphs from the western and eastern margins of the Labrador–Baffin Seaway - Fig. 6 [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2016 New palynological analysis of samples from 13 offshore wells on the Canadian Margin and six wells on the West Greenland Margin has led to a new event biostratigraphic framework for Cretaceous– Cenozoic strata of the Labrador Sea – Davis Strait – Baffin ...
Robert A. Fensome +2 more
doaj
Palaeontology, Volume 69, Issue 5, September/October 2026.Abstract The fossil genus Charnia is emblematic of the evolutionary expansion of metazoans during the late Ediacaran. The first discovery of Charnia specimens from Scandinavia is here reported, alongside new examples of Palaeopascichnus, Aspidella‐type holdfasts, and possible scratch circles.
Yorick P. Veenma +8 more
wiley +1 more source