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
... probably subtidal . The sedimentary facies of the Wagen Drift Formation are interpreted as having formed in a delta slope environment . The different interpretations of the faunal assemblages from the two areas accord well with the ...
... probably subtidal . The sedimentary facies of the Wagen Drift Formation are interpreted as having formed in a delta slope environment . The different interpretations of the faunal assemblages from the two areas accord well with the ...
Page 220
... probably deposited by wash - over processes into. Fig . 4. Top of an upward - coursening sequence in the Weltevrede Formation , Howison's Poort . Fig . 5. Thin upward - fining sequence near the. 220 ANNALS OF THE SOUTH AFRICAN MUSEUM.
... probably deposited by wash - over processes into. Fig . 4. Top of an upward - coursening sequence in the Weltevrede Formation , Howison's Poort . Fig . 5. Thin upward - fining sequence near the. 220 ANNALS OF THE SOUTH AFRICAN MUSEUM.
Page 222
... probably formed in stagnant back - barrier lagoonal or marsh environments ( Fig . 6 ) . A similar detailed facies analysis is not available for the lower part of the Witteberg Group in the Western Cape but Theron ( 1970 ) stated that ...
... probably formed in stagnant back - barrier lagoonal or marsh environments ( Fig . 6 ) . A similar detailed facies analysis is not available for the lower part of the Witteberg Group in the Western Cape but Theron ( 1970 ) stated that ...
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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