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
... communities similar to those recognized in Silurian and Devonian rocks from other parts of the world . At a single locality near the top of the Weltevrede Formation near Grahamstown , four co - existing communities are recognized : a ...
... communities similar to those recognized in Silurian and Devonian rocks from other parts of the world . At a single locality near the top of the Weltevrede Formation near Grahamstown , four co - existing communities are recognized : a ...
Page 226
... communities by Boucot ( 1975 ) , who defined a community as a recurring association of taxa that require the same range of environmental conditions or that are dependent on one another . Using a number of such Palaeozoic communities ...
... communities by Boucot ( 1975 ) , who defined a community as a recurring association of taxa that require the same range of environmental conditions or that are dependent on one another . Using a number of such Palaeozoic communities ...
Page 227
... communities and benthic assemblages recognized in the Witteberg Group , showing their relationship to depth and distance from the shore line . ( After Boucot 1975. ) PLECTONOTUS སའ་ ་ ་ LINGULA NUCULITES HOMALONOTID TROPIDOLEPTUS JANEIA ...
... communities and benthic assemblages recognized in the Witteberg Group , showing their relationship to depth and distance from the shore line . ( After Boucot 1975. ) PLECTONOTUS སའ་ ་ ་ LINGULA NUCULITES HOMALONOTID TROPIDOLEPTUS JANEIA ...
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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