Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1990 - Natural history |
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Page 216
... environmental information provided by the fossil record was consistent with proposed environmental interpretations WLD OCT ᏑᏓ & SOUTH AFRICA WE 0 OPE 100 200kilometres fossil localities Fig . 1. Map of the major outcrop areas of the ...
... environmental information provided by the fossil record was consistent with proposed environmental interpretations WLD OCT ᏑᏓ & SOUTH AFRICA WE 0 OPE 100 200kilometres fossil localities Fig . 1. Map of the major outcrop areas of the ...
Page 217
... environmental assumptions . STRATIGRAPHY In the Western Cape , the Wagen Drift Formation is the lowest unit of the Witteberg Group ( Fig . 2 ) . It consists essentially of siltstone and shale with interbedded sandstones . Hiller ...
... environmental assumptions . STRATIGRAPHY In the Western Cape , the Wagen Drift Formation is the lowest unit of the Witteberg Group ( Fig . 2 ) . It consists essentially of siltstone and shale with interbedded sandstones . Hiller ...
Page 226
... environmental conditions or that are dependent on one another . Using a number of such Palaeozoic communities , based largely on brachiopods , he recognized six benthic assemblages representing increasing distance from the shoreline ...
... environmental conditions or that are dependent on one another . Using a number of such Palaeozoic communities , based largely on brachiopods , he recognized six benthic assemblages representing increasing distance from the shoreline ...
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Common terms and phrases
abbreviated AFRICA articulate brachiopods barrier islands basal Witteberg beds benthic assemblages BENTHIC COMMUNITIES Blinkberg Formation Bokkeveld Group Boucot British Museum Natural carbonaceous shales Chonetes comma cross-bedded delta deposited Devonian rocks environmental External mould facies analysis Falkland Islands fauna Frasnian gastropod genus Givetian Grahamstown high-diversity holotype homalonotid trilobite horizontal lamination Howison's Poort inarticulate infaunal interpreted Leda Lingula lepta LOWER WITTEBERG GROUP Museum Natural History Orbiculoidea overlain paratypes parentheses pedicle valve Plectonotus sp punctuation quartz arenite unit registration number ripple cross-laminated sandstone Roman numerals salinity sandstones scientific name sediment SEDIMENTARY FACIES shoreline siltstone and shale Silurian and Devonian SOUTH AFRICAN MUSEUM specimens Spiriferid Stratigraphic subheadings are shouldered suspension feeders SWARTRUGGENS FORMATION Synonymy Tankard & Barwis taxa Theron thin tidal tidal-flat Touws River trace fossils Trigonoglossa Tropidoleptus sp Upper Devonian upward-fining cycles vicinity of Touws volume number Wagen Drift Formation wash-over WELTEVREDE FORMATION Fig Western Cape yielded marine invertebrate