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 6
... possible . The number of the figure should be lightly marked in pencil on the back of each illustration . 5. REFERENCES cited in text and synonymies should all be included in the list at the end of the paper , using the Harvard System ...
... possible . The number of the figure should be lightly marked in pencil on the back of each illustration . 5. REFERENCES cited in text and synonymies should all be included in the list at the end of the paper , using the Harvard System ...
Page 18
... possible that the scratch marks represent shallow furrowing of a trilobite - like arthropod . Cru- ziana traces are known from strata of Upper Precambrian to Triassic age ( Häntzschel 1975 : W55 ) and younger ( Shone 1978 ) . HORIZONTAL ...
... possible that the scratch marks represent shallow furrowing of a trilobite - like arthropod . Cru- ziana traces are known from strata of Upper Precambrian to Triassic age ( Häntzschel 1975 : W55 ) and younger ( Shone 1978 ) . HORIZONTAL ...
Page 23
... possible indicator of anoxic and hypersaline conditions ( cf. Berner et al . 1979 ) , do in fact include very few identifiable trace fossils . What is puzzling , however , is the repeated superposition of trace - free mudrock units with ...
... possible indicator of anoxic and hypersaline conditions ( cf. Berner et al . 1979 ) , do in fact include very few identifiable trace fossils . What is puzzling , however , is the repeated superposition of trace - free mudrock units with ...
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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