학술논문
Fossil Freshwater Molluscs from Simanya in the Kalahari System, Northern Namibia.
Document Type
Article
Source
Subject
*FOSSIL animals
*MOLLUSKS
*FRESHWATER animals
*STONE implements
*STRATIGRAPHIC geology
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Language
ISSN
1026-2954
Abstract
Fossil freshwater molluscan shells and steinkerns have been found at Simanya, on the Southwestern Bank of the Cubango River in Northern Namibia. The occurrence of fossils resembles those reported from other sites in the « Grès Polymorphes » subunit of the Kalahari System of Central Africa. The aim of this paper is to describe and interpret the Simanya fossils and to discuss their stratigraphic and palaeoenvironmental contexts. The silicified deposits (chert, chalcedony) in which the snails occur were extensively used by prehistoric peoples for manufacturing of stone tools. [ABSTRACT FROM AUTHOR]