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
... water communities similar to those recognized in Silurian and Devonian rocks from other parts of the world . At a single locality near the top of the Weltevrede Formation near Grahamstown , four co - existing communities are recognized ...
... water communities similar to those recognized in Silurian and Devonian rocks from other parts of the world . At a single locality near the top of the Weltevrede Formation near Grahamstown , four co - existing communities are recognized ...
Page 225
... water , and there is a wealth of evidence to suggest that throughout its stratigraphic range ( at least back to the ... waters ( Copper 1977 ) . Another common association in Silurian and Devonian rocks is that of homalonotid trilobites ...
... water , and there is a wealth of evidence to suggest that throughout its stratigraphic range ( at least back to the ... waters ( Copper 1977 ) . Another common association in Silurian and Devonian rocks is that of homalonotid trilobites ...
Page 226
... water beyond the local shelf edge . For the Malvinok affric Realm ( a Silurian - Devonian palaeogeographic and biogeographic realm that included South Africa , the Falkland Islands and South America south of about 10 ° S ) , Boucot ...
... water beyond the local shelf edge . For the Malvinok affric Realm ( a Silurian - Devonian palaeogeographic and biogeographic realm that included South Africa , the Falkland Islands and South America south of about 10 ° S ) , Boucot ...
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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