Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 215
... Society of southern Africa Symposium , Cape Town , September 1986 ] ABSTRACT Rare , Middle - Upper Devonian invertebrate fossils are recorded from a few scattered localities in the lower part of the Witteberg Group .
... Society of southern Africa Symposium , Cape Town , September 1986 ] ABSTRACT Rare , Middle - Upper Devonian invertebrate fossils are recorded from a few scattered localities in the lower part of the Witteberg Group .
Page 216
However , rare marine invertebrates have been recovered from a number of widely spaced localities in the lower part of the group ( Fig . 1 ) . Swart ( 1950 ) recorded the presence of the inarticulate brachiopod Lingula and further ...
However , rare marine invertebrates have been recovered from a number of widely spaced localities in the lower part of the group ( Fig . 1 ) . Swart ( 1950 ) recorded the presence of the inarticulate brachiopod Lingula and further ...
Page 228
CONCLUSIONS Rare Middle to Upper Devonian marine invertebrates from a few widespread localities in the lower part of the Witteberg Group represent a number of benthic communities similar to those recorded from other parts of the world .
CONCLUSIONS Rare Middle to Upper Devonian marine invertebrates from a few widespread localities in the lower part of the Witteberg Group represent a number of benthic communities similar to those recorded from other parts of the world .
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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