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
... 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 indeterminate brachiopods and bivalves in the ...
... 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 indeterminate brachiopods and bivalves in the ...
Page 220
... recovered from the topmost cycle . The upward - fining cycles are interpreted as being the products of a tidal - flat environment crossed by meandering tidal channels ( Tankard & Barwis 1982 ) . The change - over from the Weltevrede ...
... recovered from the topmost cycle . The upward - fining cycles are interpreted as being the products of a tidal - flat environment crossed by meandering tidal channels ( Tankard & Barwis 1982 ) . The change - over from the Weltevrede ...
Page 226
... recovered from the top of the Wagen Drift Formation might suggest a progressive shallowing of the environment . Bivalve Homalonotid - strand line Orbiculoid- Community Plectonotus Com . 226 ANNALS OF THE SOUTH AFRICAN MUSEUM.
... recovered from the top of the Wagen Drift Formation might suggest a progressive shallowing of the environment . Bivalve Homalonotid - strand line Orbiculoid- Community Plectonotus Com . 226 ANNALS OF THE SOUTH AFRICAN MUSEUM.
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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