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 215
... Fauna Palaeoecology Age Conclusions References Analysis of the sedimentary facies shows that the fossils come from a sequence of interbedded shales , siltstones and sandstones arranged in a number of thin upward - fining cycles and ...
... Fauna Palaeoecology Age Conclusions References Analysis of the sedimentary facies shows that the fossils come from a sequence of interbedded shales , siltstones and sandstones arranged in a number of thin upward - fining cycles and ...
Page 222
... FAUNA The two localities within the Wagen Drift Formation near Touws River , from which material was collected for this study , have yielded an inarticulate brachiopod ( Fig . 7E ) , several articulate brachiopods ( Fig . 7D ) ...
... FAUNA The two localities within the Wagen Drift Formation near Touws River , from which material was collected for this study , have yielded an inarticulate brachiopod ( Fig . 7E ) , several articulate brachiopods ( Fig . 7D ) ...
Page 226
... fauna to be present . The taxa that dominate the low - diversity communities of benthic assemblages 1 and 2 may also be found in high - diversity communities in deeper - water subtidal conditions ( Boucot et al . 1983 ) . The collection ...
... fauna to be present . The taxa that dominate the low - diversity communities of benthic assemblages 1 and 2 may also be found in high - diversity communities in deeper - water subtidal conditions ( Boucot et al . 1983 ) . The collection ...
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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