Search for dissertations about: "hyoliths"

Found 2 swedish dissertations containing the word hyoliths.

  2. 1. Palaeobiology and Chemostratigraphy of the Precambrian - Cambrian Transitional Beds on the Siberian Platform

    Author : Artem Kouchinsky; N.J. Butterfield; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Earth sciences; Geovetenskap; Historical Geology and Paleontology; historisk geologi och paleontologi;

    Abstract : Biological innovations during the Precambrian-Cambrian transition opened evolutionary gates towards the modem biosphere. Two interrelated aspects of this process are investigated. The first one is the ecological radiation and beginning of calcareous biomineralization in mollusc-like organisms (shelled molluscs, coeloscleritophorans, and hyoliths). READ MORE

  4. 2. The Early Cambrian Fauna of North-East Greenland

    Author : Christian B. Skovsted; John S. Peel; Lars E. Holmer; Gerd Geyer; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Early Cambrian; Dyeran; Botoman; Biostratigraphy; Palaeogeography; Small Shelly Fossils; Brachiopoda; Mollusca; Hyolitha; Trilobita; Geovetenskap; Earth sciences; Geovetenskap;

    Abstract : Small shelly fossils are common in sediments of Early Cambrian age and include the earliest common representatives of metazoan animals with mineralized hard parts. The group includes fossils of very different morphology, composition and ultrastructure. READ MORE