A5081684392- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Geology and Paleoclimatology Research
- Marine Biology and Ecology Research
- Geological and Geophysical Studies
- Microbial Community Ecology and Physiology
- Marine Sponges and Natural Products
- Coral and Marine Ecosystems Studies
- Geological and Geochemical Analysis
- Petroleum Processing and Analysis
- Metabolomics and Mass Spectrometry Studies
- Methane Hydrates and Related Phenomena
- Protist diversity and phylogeny
- Geological Studies and Exploration
- Marine Toxins and Detection Methods
- Lipid Membrane Structure and Behavior
- Origins and Evolution of Life
- Astro and Planetary Science
- Isotope Analysis in Ecology
- Photosynthetic Processes and Mechanisms
- Evolution and Paleontology Studies
- Crustacean biology and ecology
- Genetics, Bioinformatics, and Biomedical Research
- Enhanced Oil Recovery Techniques
- Geological formations and processes
University of Bremen
2019-2024
Australian National University
2018-2023
Max Planck Institute for Biogeochemistry
2018-2021
Staats- und Universitätsbibliothek Bremen
2019
The enigmatic Ediacara biota (571 million to 541 years ago) represents the first macroscopic complex organisms in geological record and may hold key our understanding of origin animals. Ediacaran macrofossils are as "strange life on another planet" have evaded taxonomic classification, with interpretations ranging from marine animals or giant single-celled protists terrestrial lichens. Here, we show that lipid biomarkers extracted organically preserved unambiguously clarify their phylogeny....
The relationship between the evolution of early animal communities and oceanic oxygen levels remains unclear.In particular, uncertainty persists in reconstructions redox conditions during pivotal Cambrian (541-510 million years ago, Ma), where conflicting datasets from deeper marine settings suggest either ocean anoxia or fully oxygenated conditions.By coupling geochemical palaeoredox proxies with a record organic-walled fossils exceptionally well-defined successions Baltic Basin, we provide...
Abstract Eukaryotic algae rose to ecological relevance after the Neoproterozoic Snowball Earth glaciations, but causes for this consequential evolutionary transition remain enigmatic. Cap carbonates were globally deposited directly these they are usually organic barren or thermally overprinted. Here we show that uniquely-preserved cap dolostones of Araras Group contain exceptional abundances a newly identified biomarker: 25,28-bisnorgammacerane. Its secular occurrence, carbon isotope...
Abstract Fossilized lipids offer a rare glimpse into ancient ecosystems. 2-Methylhopanes in sedimentary rocks were once used to infer the importance of cyanobacteria as primary producers throughout geological history. However, discovery hopanoid C-2 methyltransferase (HpnP) Alphaproteobacteria led downfall this molecular proxy. In present study, we re-examined distribution HpnP new phylogenetic framework including recently proposed candidate phyla and re-interpreted revised record...
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Abstract Fossilized lipids offer one of only few windows into ancient ecosystems. The utility such biomarkers is determined by the phylogenetic distribution lipid biosynthetic capabilities in extant organisms and extrapolation this information past. 2-Methylhopanes sedimentary rocks were once used to infer importance Cyanobacteria as primary producers geological However, discovery hopanoid C-2 methyltransferase (HpnP) Alphaproteobacteria led downfall molecular proxy. In present study, we...