Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106 |
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Page 154
Two additional ribs are present , one on either side of the thickened rib , and are sub - parallel to it , thus forming an ... Ventral margin sub - rectangular to rounded in outline , ornamented with fine rounded ribs at its margins ...
Two additional ribs are present , one on either side of the thickened rib , and are sub - parallel to it , thus forming an ... Ventral margin sub - rectangular to rounded in outline , ornamented with fine rounded ribs at its margins ...
Page 161
Diagnosis A species of Lagena distinguished by its subglobular test ornamented with 8–14 vertically aligned ribs that are sharply delineated from the chamber wall , usually rounded in cross - section , and which merge around the ...
Diagnosis A species of Lagena distinguished by its subglobular test ornamented with 8–14 vertically aligned ribs that are sharply delineated from the chamber wall , usually rounded in cross - section , and which merge around the ...
Page 170
raised limbate sutural ribs bearing irregular offshoots along their length , and one or two circular ribs over the umbilicus . Etymology Named from its frequent occurrence in the Coega Brick Pits sections . Material Holotype ( Fig .
raised limbate sutural ribs bearing irregular offshoots along their length , and one or two circular ribs over the umbilicus . Etymology Named from its frequent occurrence in the Coega Brick Pits sections . Material Holotype ( Fig .
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Common terms and phrases
abundant Albian Algoa Basin Ammobaculites apertural appears Argentina assemblages Astacolus Barremian Bartenstein & Brand base Biozone Bb borehole chambers Clay close coil Colchester core Cretaceous depressed described distinct Dorothia dorsal Early Hauterivian environments Epistomina Espitalié & Sigal examples facing feet Figure final foraminifera genus grey claystone Haplophragmoides Holotype illustrated inflated initial interval Kimmeridgian Lagena Late Hauterivian Biozone Late Valanginian Biozone later Lenticulina lignite Lingulina localities lower Magniez-Jannin margin Masiuk McLachlan McLachlan et al middle Mngazana Nodosaria Occasional occur offshore ornamentation outcrop sample Paratype periphery Pletmos possess present probably rare referred Reinholdella Remarks Reuss ribs Roemer rounded seen shallow shelf shell side view similar SOEKOR South Africa southern species specimens Stratigraphic range studied Sundays River Formation surface sutures Tappan Uitenhage upper usually ventral weakly whorl wide Zone
Bibliographic information
| Title | Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106 Volume 106 of Annals of the South African Museum, South African Museum Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, South African Museum |
| Author | South African Museum |
| Publisher | South African Museum, 2003 |
| Original from | the University of California |
| Digitized | 8 Dec 2009 |
| ISBN | 0868131784, 9780868131788 |
| Export Citation | BiBTeX EndNote RefMan |