Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 23
... Ammonites ( Jabronella , Neocosmoceras and Delphinella ) from the Santa Cruz exposures , described by Riccardi ... ammonites , since their study was based on borehole cuttings . Natland et al . ( 1974 ) reported on Favrella ammonites in ...
... Ammonites ( Jabronella , Neocosmoceras and Delphinella ) from the Santa Cruz exposures , described by Riccardi ... ammonites , since their study was based on borehole cuttings . Natland et al . ( 1974 ) reported on Favrella ammonites in ...
Page 24
... ammonites . Musacchio ( 1979 ) determined the presence of two foraminifera assemblages in the Hauterivian of the Agrio Formation . The Early Hauterivian assemblage appears to be very much the poorer , and none of the foraminifera ...
... ammonites . Musacchio ( 1979 ) determined the presence of two foraminifera assemblages in the Hauterivian of the Agrio Formation . The Early Hauterivian assemblage appears to be very much the poorer , and none of the foraminifera ...
Page 41
... AMMONITE CONTROL Ammonites have been widely reported from the Sundays River Formation since the earliest days , but their potential stratigraphic value has been somewhat clouded by the frequent lack of detailed collecting - site data .
... AMMONITE CONTROL Ammonites have been widely reported from the Sundays River Formation since the earliest days , but their potential stratigraphic value has been somewhat clouded by the frequent lack of detailed collecting - site data .
Contents
Introduction | 5 |
Foraminiferal biozonation of the Sundays River Formation | 33 |
The Algoa Basin outcrops | 44 |
Copyright | |
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Agrio Formation Albian ammonites apertural view Aptian Argentina assemblages Astacolus Barremian Bartenstein & Brand Berriasian Bettenstaedt borehole borehole PB-A1 Citharina Cliff outcrop sample Coega Coega Brick Pits core Dentalina DIEGO Dorothia dorsal margin down-hole appearance Early Barremian Early Cretaceous Early Hauterivian environments Eoguttulina Epistomina caracolla Espitalié & Sigal feet VII Figure final chamber final whorl foraminifera genus Graaff-Reinet grey claystone Haplophragmoides sp hofkeri Holotype illustrated Kimmeridgian Kirkwood Formation Lagena Late Hauterivian Biozone Late Valanginian Biozone lignite Lingulina Loeblich & Tappan Magniez-Jannin 1975 Majunga Basin Masiuk & Viña McLachlan Mngazana Basin Musacchio Nodosaria occur offshore ornamentation ostracods Paratype Planularia Pletmos Basin Portlandian rare lignite Reinholdella valendisensis Remarks Reuss Río Mayer Roemer shallow borehole shelf shell side view silty SOEKOR negative South Africa southern species specimens Stratigraphic range Sundays River Formation sutures test periphery test wall Trochammina Uitenhage Uitenhage to Graaff-Reinet Vaginulinopsis weakly Zoetgeneugd Cliff outcrop