Carboniferous pycnoxylic woods from the Dwyka Group of southern Namibia

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dc.contributor.authorBangert, Berthold
dc.contributor.authorBamford, Marion K
dc.date.accessioned2015-01-09T13:06:34Z
dc.date.available2015-01-09T13:06:34Z
dc.date.issued2001
dc.description.abstractGlacial deposits of the Dwyka Group between Keetmanshoop and Mariental in southern Namibia have been reinvestigated for palaeontological remains and associated tuff horizons in an attempt to accurately date the deposits. SHRIMP-based dating of juvenile zircons from these tuff horizons provide ages which cumulate in the latest Carboniferous (Gzelian). The pycnoxylic woods Megaporoxylon scherziKrausel and Megaporoxylon kaokense Krausel are described in detail for the first time and are compared with similar permineralised woods from Gondwana. Based on previous fossil wood studies covering the rocks of the main Karoo Basin, these species occur only in the Dwyka and lower Ecca Groups in southern Africa and do not extend to the upper Ecca Group.en_ZA
dc.description.sponsorshipThe Council's Research Committee, University of the Witwatersrand; National Research Foundation (NRF); Palaeo-Anthropology Scientific Trust (PAST); German Research Foundation (DFG) and the Postgraduate Research Program "Interdisciplinary Geoscience Research in Africa"en_ZA
dc.identifier.issn0078-8554
dc.identifier.urihttp://hdl.handle.net/10539/16363
dc.language.isoenen_ZA
dc.publisherBernard Price Institute for Palaeontological Researchen_ZA
dc.subjectDwykaen_ZA
dc.subjectfossil wooden_ZA
dc.subjectMegaporoxylonen_ZA
dc.subjectNamibiaen_ZA
dc.titleCarboniferous pycnoxylic woods from the Dwyka Group of southern Namibiaen_ZA
dc.typeArticleen_ZA
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Volume 37 2001