Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 215
Such an assemblage is interpreted as representing the restrictive conditions of
an intertidal flat environment . Analysis of the sedimentary facies shows that the
fossils come from a sequence of interbedded shales , siltstones and sandstones
...
Such an assemblage is interpreted as representing the restrictive conditions of
an intertidal flat environment . Analysis of the sedimentary facies shows that the
fossils come from a sequence of interbedded shales , siltstones and sandstones
...
Page 218
The lithofacies are relatively sandy and similar to those of the Bokkeveld Group ,
which have been interpreted as being the deposits of arcuate deltas subject to
marine reworking similar to the present - day Brazos River delta of Texas and the
...
The lithofacies are relatively sandy and similar to those of the Bokkeveld Group ,
which have been interpreted as being the deposits of arcuate deltas subject to
marine reworking similar to the present - day Brazos River delta of Texas and the
...
Page 228
The different interpretations of the faunal assemblages from the two areas accord
well with the different interpretations of the containing sedimentary facies . The
shales at the top of the Weltevrede Formation at Howison's Poort are thought to ...
The different interpretations of the faunal assemblages from the two areas accord
well with the different interpretations of the containing sedimentary facies . The
shales at the top of the Weltevrede Formation at Howison's Poort are thought to ...
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Common terms and phrases
abbreviated according AFRICA articulate brachiopods association author's name authors basal bedding benthic assemblages BENTHIC COMMUNITIES bivalves Blinkberg Bokkeveld Group Boucot capital collected communities consists containing cycles delta deposited described Devonian Devonian rocks differences DISTRIBUTARY diversity dominated Eastern environment environmental fauna figures gastropod homalonotid Howison's Poort illustrations inarticulate indicate infaunal interpreted intertidal Islands italics known letters Lingula localities lower major marine marine invertebrates mark Member Middle mould Museum Natural History nearshore Note occur original parentheses placed plant fossils Plectonotus punctuation quartz arenites range recorded references represent reworking salinity sandstones scientific sediment SEDIMENTARY FACIES separates sequence shales shallow siltstone similar Smith South African species specimens Stratigraphic subtidal suggest Tables Tankard thick thin Touws River trace fossils trilobite unit upper valve Wagen Drift Formation Weltevrede Formation Western Cape Witpoort Formation Witteberg Group yielded Zoophycos