Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1991 - Natural history |
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Page 9
... represent former high - energy depositional environments and shifting substrates hostile to sediment - dwelling organisms . Pyritic trace - free mudrocks may have been deposited in biologi- cally sterile parts of the epeiric sea ...
... represent former high - energy depositional environments and shifting substrates hostile to sediment - dwelling organisms . Pyritic trace - free mudrocks may have been deposited in biologi- cally sterile parts of the epeiric sea ...
Page 10
... represent part of the lowermost Table Moun- tain Group in the Port Elizabeth area . The probable base of the Table Mountain Group is represented by an outcrop of granite overlain by conglomerates con- taining boulders of granite and ...
... represent part of the lowermost Table Moun- tain Group in the Port Elizabeth area . The probable base of the Table Mountain Group is represented by an outcrop of granite overlain by conglomerates con- taining boulders of granite and ...
Page 18
... represents a sandstone sole marking that consists of a series of raised elongate ridges in a V - shaped pattern . It is ... represent shallow furrowing of a trilobite - like arthropod . Cru- ziana traces are known from strata of Upper ...
... represents a sandstone sole marking that consists of a series of raised elongate ridges in a V - shaped pattern . It is ... represent shallow furrowing of a trilobite - like arthropod . Cru- ziana traces are known from strata of Upper ...
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Common terms and phrases
abbreviated bioturbated burrow fill callianassid decapods Cape Town Chondrites cm Fig cm in diameter colonization by sediment-dwellers correlation cross-section Cruziana ichnofacies model currents and waves decapods depositional environment Description Differential weathering Diplocraterion disseminated pyrite EARLY ORDOVICIAN SARDINIA Ekdale epeiric sea FACIES INTERPRETATIONS Fascifodina Figure Frey & Pemberton Gastropoda Häntzschel 1975 holotype ichno ichnogenus indicate INNER SHELF MEGARIPPLE INNER SHELF MUD INNERMOST SHELF MUD interval Irregular U-tubes Leda MUD AND SAND Mudrock units namacolus occur Ophiomorpha paper paratypes parentheses Pemberton 1984 Port Elizabeth punctuation quartzite references relict sedimentary structures Restricted biota rocks Roman numerals sandstone sole Sardinia Bay Formation scientific name sediment sediment-dwelling organisms sedimentary structures Seilacher 1967 shafts shallow marine Shone shoreface Skolithos ichnofacies Skolithos tubes sole marking SOUTH AFRICAN MUSEUM Spreiten demarcated sub-horizontal Synonymy Table Mountain Group Thalassinoides tidal currents trace fossil assemblages trace fossil association traces resembling Upper Sardinia Bay V-shaped pattern Vermiform sand-filled tubes vertical burrows