Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 191
... ventral . The sutural ribs do not usually link with either the ventral or dorsal margin . These tests may prove to be related to the Astacolus explicatus shell illustrated by McLachlan et al . ( 1976b , fig . 11 ( nos 20-21 ) ) ( non ...
... ventral . The sutural ribs do not usually link with either the ventral or dorsal margin . These tests may prove to be related to the Astacolus explicatus shell illustrated by McLachlan et al . ( 1976b , fig . 11 ( nos 20-21 ) ) ( non ...
Page 241
... ventral side , often with an umbilical plug , and an extra - umbilical foramen and a possible similarly placed aperture too , are not typical of this genus ( see Loeblich & Tappan 1964 : C769 ) . These forms seem to compare more closely ...
... ventral side , often with an umbilical plug , and an extra - umbilical foramen and a possible similarly placed aperture too , are not typical of this genus ( see Loeblich & Tappan 1964 : C769 ) . These forms seem to compare more closely ...
Page 245
... ventral and dorsal sides are flush : oblique on the dorsal , radiate on the ventral . Tests of this and the other rare species of Reinholdella ( species A to C ) , although confined to short stratigraphic intervals , are usually poorly ...
... ventral and dorsal sides are flush : oblique on the dorsal , radiate on the ventral . Tests of this and the other rare species of Reinholdella ( species A to C ) , although confined to short stratigraphic intervals , are usually poorly ...
Contents
Introduction | 5 |
Foraminiferal biozonation of the Sundays River Formation | 33 |
The Algoa Basin outcrops | 44 |
Copyright | |
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Common terms and phrases
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