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
... Middle - Upper 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 ...
... Middle - Upper 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 ...
Page 218
... middle of the formation is the Blinkberg Sandstone Member ( SACS 1980 ) . Plant fossils and trace fossils , including burrows , tracks and trails of various kinds , as well as Zoophycos , have been found throughout the Weltevrede ...
... middle of the formation is the Blinkberg Sandstone Member ( SACS 1980 ) . Plant fossils and trace fossils , including burrows , tracks and trails of various kinds , as well as Zoophycos , have been found throughout the Weltevrede ...
Page 228
... Middle or Upper 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 ...
... Middle or Upper 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 ...
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Common terms and phrases
abbreviated AFRICA articulate brachiopods barrier islands basal Witteberg beds benthic assemblages BENTHIC COMMUNITIES Blinkberg Formation Bokkeveld Group Boucot British Museum Natural carbonaceous shales Chonetes comma cross-bedded delta deposited Devonian rocks environmental External mould facies analysis Falkland Islands fauna 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 Orbiculoidea overlain paratypes parentheses pedicle valve Plectonotus sp punctuation quartz arenite unit registration number ripple cross-laminated sandstone Roman numerals salinity sandstones scientific name sediment SEDIMENTARY FACIES shoreline siltstone and shale Silurian and Devonian SOUTH AFRICAN MUSEUM specimens Spiriferid 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 vicinity of Touws volume number Wagen Drift Formation wash-over WELTEVREDE FORMATION Fig Western Cape yielded marine invertebrate