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 225
... suggest that throughout its stratigraphic range ( at least back to the Ordovician ) , it occurred in nearshore . faunas that were characterized by low species diversity usually with no more than five taxa ( Raup & Stanley 1971 : 208 ) ...
... suggest that throughout its stratigraphic range ( at least back to the Ordovician ) , it occurred in nearshore . faunas that were characterized by low species diversity usually with no more than five taxa ( Raup & Stanley 1971 : 208 ) ...
Page 226
... suggest that the fossils represent an intertidal environment . Figure 10 is a cartoon reconstruction of the environment envisaged for the Howison's Poort site . In contrast , the brachiopod fauna from the Western Cape localities would ...
... suggest that the fossils represent an intertidal environment . Figure 10 is a cartoon reconstruction of the environment envisaged for the Howison's Poort site . In contrast , the brachiopod fauna from the Western Cape localities would ...
Page 228
... suggest a Givetian or Frasnian age for the lower part of the Witteberg Group . Such an age determination agrees well with the suggestion of Cooper ( 1982 , 1986 ) , who used eustatic sea - level changes to effect a correlation with ...
... suggest a Givetian or Frasnian age for the lower part of the Witteberg Group . Such an age determination agrees well with the suggestion of Cooper ( 1982 , 1986 ) , who used eustatic sea - level changes to effect a correlation with ...
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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