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 226
... ( Boucot 1975 ) . Associations of this sort just described were termed communities by Boucot ( 1975 ) , who defined a community as a recurring association of taxa that require the same range of environmental conditions or that are ...
... ( Boucot 1975 ) . Associations of this sort just described were termed communities by Boucot ( 1975 ) , who defined a community as a recurring association of taxa that require the same range of environmental conditions or that are ...
Page 228
... Boucot et al . ( 1983 ) discussed these various age determinations and used the presence of the brachiopod Tropidoleptus , a genus that apparently does not occur in similar facies in the underlying Bokkeveld Group , to suggest a ...
... Boucot et al . ( 1983 ) discussed these various age determinations and used the presence of the brachiopod Tropidoleptus , a genus that apparently does not occur in similar facies in the underlying Bokkeveld Group , to suggest a ...
Page 229
Annale Van Die Suid-Afrikaanse Museum South African Museum. REFERENCES BOUCOT , A. J. 1975. Evolution and extinction rate controls . Amsterdam : Elsevier . BOUCOT , A. J. , BRUNTON , C. H. C. & THERON , J. N. 1983. Implications for the ...
Annale Van Die Suid-Afrikaanse Museum South African Museum. REFERENCES BOUCOT , A. J. 1975. Evolution and extinction rate controls . Amsterdam : Elsevier . BOUCOT , A. J. , BRUNTON , C. H. C. & THERON , J. N. 1983. Implications for the ...
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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