Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1990 - Natural history |
From inside the book
Results 1-3 of 3
Page 217
... units as being informal members within their Wagen Drift Formation . The lower , Nougaspoort Member , consists of dirty white , red - weathering , unevenly bedded , quartz ... unit . In the middle is a thin , cross - bedded , quartz arenite ...
... units as being informal members within their Wagen Drift Formation . The lower , Nougaspoort Member , consists of dirty white , red - weathering , unevenly bedded , quartz ... unit . In the middle is a thin , cross - bedded , quartz arenite ...
Page 218
... arenite unit , which contains some plant fossils . This in turn , is ... quartz arenites with thin shale partings and containing plant fossils . In ... quartz arenite units , two of which have been accorded member status . At the base of ...
... arenite unit , which contains some plant fossils . This in turn , is ... quartz arenites with thin shale partings and containing plant fossils . In ... quartz arenite units , two of which have been accorded member status . At the base of ...
Page 222
... quartz arenite sequence is interrupted by the development of thin ( 1 m ... arenites of the Blinkberg Formation are the products of reworking of the delta ... unit but recent collecting near the top , just below the junction with the ...
... quartz arenite sequence is interrupted by the development of thin ( 1 m ... arenites of the Blinkberg Formation are the products of reworking of the delta ... unit but recent collecting near the top , just below the junction with the ...
Other editions - View all
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