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
... four co - existing communities are recognized : a linguloid - orbiculoid community , a Tropidoleptus community , a homalonotid - Plectonotus community , and a community of largely infaunal bivalves . Such an assemblage is interpreted as ...
... four co - existing communities are recognized : a linguloid - orbiculoid community , a Tropidoleptus community , a homalonotid - Plectonotus community , and a community of largely infaunal bivalves . Such an assemblage is interpreted as ...
Page 226
... four communities making up those assemblages . This would suggest that the fossils represent an intertidal environment . Figure 10 is a cartoon reconstruction of the environment envisaged for the Howison's Poort site . In contrast , the ...
... four communities making up those assemblages . This would suggest that the fossils represent an intertidal environment . Figure 10 is a cartoon reconstruction of the environment envisaged for the Howison's Poort site . In contrast , 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