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
... 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 arranged in a number of thin upward - fining cycles and ...
... 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 arranged in a number of thin upward - fining cycles and ...
Page 225
... conditions . The only known exception to this general rule is Lingula , which is an infaunal suspension feeder known to be moderately euryhaline and capable of withstanding reduced salinities for short periods . Hammond ( 1983 ) showed ...
... conditions . The only known exception to this general rule is Lingula , which is an infaunal suspension feeder known to be moderately euryhaline and capable of withstanding reduced salinities for short periods . Hammond ( 1983 ) showed ...
Page 226
... conditions or that are dependent on one another . Using a number of such Palaeozoic communities , based largely on brachiopods , he recognized six benthic assemblages representing increasing dis- tance from the shoreline . This , in ...
... conditions or that are dependent on one another . Using a number of such Palaeozoic communities , based largely on brachiopods , he recognized six benthic assemblages representing increasing dis- tance from the shoreline . This , in ...
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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