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 217
... members within their Wagen Drift Formation . 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 ...
... members within their Wagen Drift Formation . 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 ...
Page 218
... Member occupies much the same position as the Nou- gaspoort Member does in the west , and near the middle of the formation is the Blinkberg Sandstone Member ( SACS 1980 ) . Plant fossils and trace fossils , including burrows , tracks ...
... Member occupies much the same position as the Nou- gaspoort Member does in the west , and near the middle of the formation is the Blinkberg Sandstone Member ( SACS 1980 ) . Plant fossils and trace fossils , including burrows , tracks ...
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Common terms and phrases
abbreviated AFRICA articulate brachiopods barrier islands benthic assemblages BENTHIC COMMUNITIES bicuspidata Gould bivalves bivalves and possible Blinkberg Formation Bokkeveld Group Boucot British Museum Natural carbonaceous shales Chonetes Chonetid Community comma cross-bedded deeper-water subtidal conditions delta deposited Devonian rocks environmental External mould facies analysis Falkland Islands fauna Formation near Touws 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 namacolus Orbiculoidea overlain paratypes parentheses pedicle valve punctuation salinity sandstones scientific name sediment SEDIMENTARY FACIES shoreline shouldered italics siltstone and shale Silurian and Devonian SOUTH AFRICAN MUSEUM specimens Spiriferid Community 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 Wagen Drift Formation wash-over Weltevrede Formation Western Cape Witpoort Formation yielded marine invertebrate