One of the most dramatic episodes of sustained diversification of marine ecosystems in Earth history took place during the Early to Middle Ordovician Period. Changes in climate, oceanographic conditions, and trophic structure are hypothesised to have been major drivers of these biotic events, but relatively little is known about the composition and stability of marine microbial communities controlling biogeochemical cycles at the base of the food chain. This study examines well-preserved, carbonate-rich strata spanning the Tremadocian through Upper Dapingian stages from the Oslobreen Group in Spitsbergen, Norway. Abundant bacterial lipid markers (elevated hopane/sterane ratios, average = 4.8; maximum of 13.1), detection of Chlorobi markers ...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Lipid biomarker assemblages preserved within the bitumen and kerogen phases of sedimentary rocks fro...
The largest extinction of the Phanerozoic occurred near the Permian/Triassic (P/Tr) boundary some 25...
One of the most dramatic episodes of sustained diversification of marine ecosystems in Earth history...
One of the most dramatic episodes of sustained diversification of marine ecosystems in Earth history...
Lipid biomarkers are recalcitrant organic natural products that have potential to provide informatio...
The Late Ordovician mass extinction was linked to climate cooling and glaciation of Gondwana during ...
The Late Ordovician mass extinction was linked to climate cooling and glaciation of Gondwana during ...
The Great Ordovician Biodiversification Event (GOBE) is regarded as one of the most significant evol...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Distributions and carbon isotopic compositions of microbial lipid biomarkers were investigated in se...
The largest extinction of the Phanerozoic occurred near the Permian/Triassic (P/Tr) boundary some 25...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Lipid biomarker assemblages preserved within the bitumen and kerogen phases of sedimentary rocks fro...
The largest extinction of the Phanerozoic occurred near the Permian/Triassic (P/Tr) boundary some 25...
One of the most dramatic episodes of sustained diversification of marine ecosystems in Earth history...
One of the most dramatic episodes of sustained diversification of marine ecosystems in Earth history...
Lipid biomarkers are recalcitrant organic natural products that have potential to provide informatio...
The Late Ordovician mass extinction was linked to climate cooling and glaciation of Gondwana during ...
The Late Ordovician mass extinction was linked to climate cooling and glaciation of Gondwana during ...
The Great Ordovician Biodiversification Event (GOBE) is regarded as one of the most significant evol...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Distributions and carbon isotopic compositions of microbial lipid biomarkers were investigated in se...
The largest extinction of the Phanerozoic occurred near the Permian/Triassic (P/Tr) boundary some 25...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Global climate is, in part, regulated by the effect of microbial processes on biogeochemical cycling...
Lipid biomarker assemblages preserved within the bitumen and kerogen phases of sedimentary rocks fro...
The largest extinction of the Phanerozoic occurred near the Permian/Triassic (P/Tr) boundary some 25...