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At the Origin of Animals: The Revolutionary Cambrian Fossil Record
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
2013 (English)In: Current Genomics, ISSN 1389-2029, Vol. 14, no 6, 344-354 p.Article in journal (Refereed) Published
Abstract [en]

The certain fossil record of animals begins around 540 million years ago, close to the base of the Cambrian Period. A series of extraordinary discoveries starting over 100 years ago with Walcott's discovery of the Burgess Shale has accelerated in the last thirty years or so with the description of exceptionally-preserved Cambrian fossils from around the world. Such deposits of "Burgess Shale Type" have been recently complemented by other types of exceptional preservation. Together with a remarkable growth in knowledge about the environments that these early animals lived in, these discoveries have long exerted a fascination and strong influence on views on the origins of animals, and indeed, the nature of evolution itself. Attention is now shifting to the period of time just before animals become common, at the base of the Cambrian and in the preceding Ediacaran Period. Remarkable though the Burgess Shale deposits have been, a substantial gap still exists in our knowledge of the earliest animals. Nevertheless, the fossils from this most remarkable period of evolutionary history continue to exert a strong influence on many aspects of animal evolution, not least recent theories about developmental evolution.

Place, publisher, year, edition, pages
2013. Vol. 14, no 6, 344-354 p.
Keyword [en]
Cambrian explosion, Ediacara, Animal evolution, Developmental evolution
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-209872ISI: 000325102200002OAI: oai:DiVA.org:uu-209872DiVA: diva2:659861
Available from: 2013-10-28 Created: 2013-10-28 Last updated: 2013-10-28Bibliographically approved

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