Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 216
However , rare marine invertebrates have been recovered from a number of widely spaced localities in the lower part of the group ( Fig . 1 ) . Swart ( 1950 ) recorded the presence of the inarticulate brachiopod Lingula and further ...
However , rare marine invertebrates have been recovered from a number of widely spaced localities in the lower part of the group ( Fig . 1 ) . Swart ( 1950 ) recorded the presence of the inarticulate brachiopod Lingula and further ...
Page 217
The lower , Nougaspoort Member , consists of dirty white , red - weathering , unevenly bedded , quartz arenites separated by thin beds of laminated siltstone . The sandstones show occasional cross - bedding and contain numerous examples ...
The lower , Nougaspoort Member , consists of dirty white , red - weathering , unevenly bedded , quartz arenites separated by thin beds of laminated siltstone . The sandstones show occasional cross - bedding and contain numerous examples ...
Page 228
Fish remains from the Waaipoort Formation in the upper part of the group led Gardiner ( 1969 ) to propose a Lower Carboniferous age , whereas Stapleton ( 1977a , 1977b ) used spores from the same horizon to determine a Middle or Upper ...
Fish remains from the Waaipoort Formation in the upper part of the group led Gardiner ( 1969 ) to propose a Lower Carboniferous age , whereas Stapleton ( 1977a , 1977b ) used spores from the same horizon to determine a Middle or Upper ...
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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