| UPPSALA UNIVERSITY : Department of Earth Sciences: Palaeobiology : Micropalaeontology | ||
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| Microbiota, representing Prokaryotes and Protoctists, are the most
abundant organisms preserved in the fossil record and they record
life on Earth for ca. 3.5 Ga. During this time, single-celled
organisms have evolved into many different morphological, biochemical
and ecological types. Their greatest diversification occurred in the
Neoproterozoic and Cambrian (ca. 1.0 Ga - 490 Ma), a period of time
when the Earth experienced severe global climatic and environmental
changes. The causes of these biotic innovations, besides intrinsic
genetic recombinations and mutations, which are unrecognisable in
fossils, are closely related in time and space to environmental
changes that can be detected in geological and geochemical
records. Darwinian natural selection and adaptation of evolving biota
to changing environments, and Lovelockian environmental feedback are
integrated and are intriguing scientific targets that form a common
interest in our studies. |
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Visingsö in Lake Vättern, Central Sweden |
Upper Proterozoic rocks on Visingsö |
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| Who we are... | ||
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Malgorzata Moczydlowska-Vidal |
Fieldwork in the Great Basin, Nevada, U.S.A | |
| Main interests: Neoproterozoic-Cambrian
microbiota (acritarchs and bacteria), their palaeobiology, ecosystems
and biochronology. Evolution of early life and Earth's environmental
changes. Homepage & e-mail Research Profile |
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| Acritarch genus Skiagia | Acritarch genus Globosphaeridium | |
| Globosphaeridium under the SEM | Close-up of Globosphaeridium | |
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| Sebastian Willman Doctoral Student |
Acritarch species Polygonium gracile from the Lower Ordovician, Jilin Province, China | |
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Main interests: Ediacaran and Cambrian acritarchs. Origins and diversification of phytoplankton |
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© 2001-2007 UPPSALA UNIVERSITET,
Paleobiologi, 752 36 Uppsala |