Search for dissertations about: "Palaeoecology"

Showing result 16 - 20 of 24 swedish dissertations containing the word Palaeoecology.

  2. 16. Biostratigraphy, fauna, correlation and palaeoecology of the Vassbo Formation (L. Cambrian; NW Dalarna, Sweden)

    Author : Andor J. Nyers; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  4. 17. Origin and Lifestyles of early Brachiopods and other Lophotrochozoans : Insights from the Chengjiang and Guanshan Fossil-Lagerstätten

    Author : Haizhou Wang; Lars E. Holmer; Zhifei Zhang; Michael Streng; David A.T. Harper; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cambrian Explosion; Chengjiang; Guanshan; Lagerstätten; Lophotrochozoa; Brachiopoda; Earth Science with specialization in Historical Geology and Palaeontology; Geovetenskap med inriktning mot historisk geologi och paleontologi;

    Abstract : One of the great unsolved evolutionary questions concerns the origin and phylogeny of the major animal phyla that appeared in the fossil record more than 540 million years ago, during the Cambrian explosion. Although new molecular information has been very useful, we still have little understanding about the origin of most of the phyla of bilaterians living today. READ MORE

  5. 18. Holocene Climate in Central and Southern Sweden : Quantitative Reconstructions from Fossil Data

    Author : Karin Antonsson; Keith Bennett; Heikki Seppä; Andy Lotter; Uppsala universitet; []
    Keywords : Quaternary geology; pollen analysis; climate reconstructions; transfer functions; vegetation dynamics; Sweden; Kvartärgeologi;

    Abstract : In quantitative palaeoecology modern species-environmental relationships can be statistically modelled, and recent development has made the calibration models more statistically robust. These models are used to transform fossil assemblages to quantitative estimates of past environmental conditions. READ MORE

  6. 19. Unlocking the hidden diversity of organic-walled microfossils from the early Cambrian of North Greenland

    Author : Elise Wallet; Sebastian Willman; Ben Slater; Graham Budd; Charles H. Wellman; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cambrian; acritarchs; organic-walled microfossils; small carbonaceous fossils; Greenland; diversity; disparity; taxonomy; taphonomy; Crustacea; plankton; Historical Geology and Paleontology; Historisk geologi och paleontologi;

    Abstract : The early Cambrian Buen Formation of North Greenland is celebrated for hosting one of the oldest Cambrian Burgess Shale-type deposits known to date – the Sirius Passet Lagerstätte. Further south in a shallower shelf facies belt, the Buen Formation yielded organic-walled microfossils (OWMs) that were originally described with a focus on acritarchs. READ MORE

  7. 20. Reef biostromes and related facies from the Middle Silurian of Gotland, Sweden

    Author : Olof Sandström; Geologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; physical geography; Geology; stromatoporoids; facies analysis; palaeobiology; Reefs; biostromes; Geologi; fysisk geografi;

    Abstract : Reef biostromes and related facies from the upper part of Wenlock and from Ludlow were investigated in order to account for their formation, their palaeoecology and biology. In the Hemse Group of Ludlow age, all studied biostromes comprise a low diversity fauna where one or few species dominates. READ MORE