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
... Devonian invertebrate fossils are recorded from a few scattered localities in the lower part of the Witteberg Group . The specimens represent a number of shallow - water communities similar to those recognized in Silurian and Devonian ...
... Devonian invertebrate fossils are recorded from a few scattered localities in the lower part of the Witteberg Group . The specimens represent a number of shallow - water communities similar to those recognized in Silurian and Devonian ...
Page 228
... Devonian ( Givetian - Frasnian ) age . Witteberg plant macrofossils suggested a late Devonian age to Plumstead ( 1967 , 1969 ) . Boucot et al . ( 1983 ) discussed these various age determinations and used the presence of the brachiopod ...
... Devonian ( Givetian - Frasnian ) age . Witteberg plant macrofossils suggested a late Devonian age to Plumstead ( 1967 , 1969 ) . Boucot et al . ( 1983 ) discussed these various age determinations and used the presence of the brachiopod ...
Page 229
... Devonian rocks in which Tropidoleptus ( Brachiopoda ) has been found . Geological Magazine 120 ( 1 ) : 51–58 . COOPER , M. R. 1982. A revision of the Devonian ( Emsian - Eifelian ) Trilobita from the Bokkeveld Group of South Africa ...
... Devonian rocks in which Tropidoleptus ( Brachiopoda ) has been found . Geological Magazine 120 ( 1 ) : 51–58 . COOPER , M. R. 1982. A revision of the Devonian ( Emsian - Eifelian ) Trilobita from the Bokkeveld Group of South Africa ...
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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