Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1989 - Natural history |
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Page 442
... hinge ears in LV . Description External features . Medium - sized ( see relative size scale for genus , Whatley et al . 1986 : 388 ) , thick - shelled and robust . Subrectangular in lateral view ; strongly inflated medianly and bluntly ...
... hinge ears in LV . Description External features . Medium - sized ( see relative size scale for genus , Whatley et al . 1986 : 388 ) , thick - shelled and robust . Subrectangular in lateral view ; strongly inflated medianly and bluntly ...
Page 446
... hinge ears in LV , particularly in the female . VM straight to very gently convex . Greatest height at the ACA ... hinge ear in the latter . Ornament reticulate with large open fossae of fairly regular size , which are more circular ...
... hinge ears in LV , particularly in the female . VM straight to very gently convex . Greatest height at the ACA ... hinge ear in the latter . Ornament reticulate with large open fossae of fairly regular size , which are more circular ...
Page 447
... hinge ears in the LV , can readily be distinguished in that they possess quite different ornament , and because P. ocularis lacks a SCT . Although the external morphology of the new species differs significantly from P. major Benson and ...
... hinge ears in the LV , can readily be distinguished in that they possess quite different ornament , and because P. ocularis lacks a SCT . Although the external morphology of the new species differs significantly from P. major Benson and ...
Contents
Discussion | 447 |
Family Trachyleberididae SylvesterBradley 1948 | 453 |
Acknowledgements | 456 |
Copyright | |
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Common terms and phrases
1972 Poseidonamicus 200 m water AAIW Abbreviations abundance of Poseidonamicus adductors adult valves allochthonous ancestor Antarctic Intermediate Water Atlantic Deep Water Australasia Bathyal Campanian Cenozoic Chapman & Shannon continental margin continental shelf continental slope deep-water depth range Dingle dissolved oxygen dissolved oxygen values dorsal Eocene genus hinge ears holotype homeomorphy inner shelf internal ocular sinus isobath juvenile lower depth limit Lower Eocene margin of south-western mean mud contents Miocene ml/l Mozambique Channel NADW North Atlantic Deep Orange Shelf area ostracod fauna ostracod population oxygen deficient parameters paratypes Percentage of adult percentage of ostracod plotted against water Poseidonamicus major Benson Poseidonamicus panopsus sp Quaternary relative abundance salinity minimum zone scar separated shallow-water species sighted species smoothed 5-point means South African Museum south-western Africa southern Africa species of Poseidonamicus St Helena Bay Tertiary upper depth limit Walvis Bay water depth Whatley & Coles Whatley et al