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 221
... Weltevrede Formation , Howison's Poort . Fig . 6. Black carbonaceous shale of lagoonal origin , overlain and underlain by barrier island sandstones , Witpoort Formation , Howison's Poort . SEDIMENTARY FACIES IN THE LOWER WITTEBERG GROUP ...
... Weltevrede Formation , Howison's Poort . Fig . 6. Black carbonaceous shale of lagoonal origin , overlain and underlain by barrier island sandstones , Witpoort Formation , Howison's Poort . SEDIMENTARY FACIES IN THE LOWER WITTEBERG GROUP ...
Page 225
... 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 they are commonly ...
... 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 they are commonly ...
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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