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
... rocks of the lower Witteberg Group in the Willowmore district . Loock ( 1967 ) reported the discovery of a ... Devonian or possibly an Upper Devonian to Lower Carboniferous age to the basal Witteberg beds . The purpose of the present ...
... rocks of the lower Witteberg Group in the Willowmore district . Loock ( 1967 ) reported the discovery of a ... Devonian or possibly an Upper Devonian to Lower Carboniferous age to the basal Witteberg beds . The purpose of the present ...
Page 225
... Devonian rocks of nearshore origin ( Boucot 1975 ) . Palaeozoic bivalves were largely non - siphonate and most were shallow infaunal deposit feeders or semi - infaunal suspension feeders ( Stanley 1968 ) . In Silurian and Devonian rocks ...
... Devonian rocks of nearshore origin ( Boucot 1975 ) . Palaeozoic bivalves were largely non - siphonate and most were shallow infaunal deposit feeders or semi - infaunal suspension feeders ( Stanley 1968 ) . In Silurian and Devonian rocks ...
Page 228
... Devonian ( Givetian - Frasnian ) age . Witteberg plant macrofossils ... rocks in Europe and North America . His proposals gave a Givetian age for ... Devonian marine invertebrates from a few widespread localities in the lower part of the ...
... Devonian ( Givetian - Frasnian ) age . Witteberg plant macrofossils ... rocks in Europe and North America . His proposals gave a Givetian age for ... Devonian marine invertebrates from a few widespread localities in the lower part of the ...
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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