Search for dissertations about: "Ordovician"
Showing result 16 - 20 of 40 swedish dissertations containing the word Ordovician.
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16. Microfossils of eukaryotic cysts through time : A study of Precambrian-Ordovician organic-walled microbiota
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17. Palaeobiology and biostratigraphy of Ordovician Chitinozoa from Sweden
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18. Evolution and ecology of Baltic late Ordovician univalved molluscs
Abstract : Univalved molluscs (Gastropoda and Tergomya) are common fossils in the Palaeozoic succession across Baltoscandia, but most of the more embracive descriptive works on this group appeared before or near the turn of the 19th century. The study presented here aims at revision and description of some Baltoscandian late Ordovician/early Silurian univalved molluscs with emphasis on their shell morphology. READ MORE
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19. Traces in Earth's geological record of the break-up of the L-chondrite parent body 470 Ma
Abstract : This thesis deals with signatures in sediments on Earth related to the L-chondrite parent body break-up event at 470 Ma. The aim of this thesis is twofold: (1) investigate if the increased flux of extraterrestrial material to Earth, following the disruption of the L-chondrite parent body included larger, asteroid-sized bodies (2) try to develop new methods and tools for finding and classifying relict cosmic material in sediments. READ MORE
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20. Early Ordovician (Volkhov Stage) brachiopod faunas of the East Baltic
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