Annals of the South African Museum |
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Page 6
Scutum thick , of high relief ; concave exterior with prominent growth ridges . every alternate one denticulating occludent margin ; no radial sculpture ; basal margin convex and about two - thirds length of occludent margin ; tergal ...
Scutum thick , of high relief ; concave exterior with prominent growth ridges . every alternate one denticulating occludent margin ; no radial sculpture ; basal margin convex and about two - thirds length of occludent margin ; tergal ...
Page 25
Anterior margin weakly convex , posterodorsal margin almost straight and respiratory margin obliquely truncate . Escutcheon narrow , indistinct , not sunken . Broad subtrigonal area essentially flat , meeting the posterodorsal ...
Anterior margin weakly convex , posterodorsal margin almost straight and respiratory margin obliquely truncate . Escutcheon narrow , indistinct , not sunken . Broad subtrigonal area essentially flat , meeting the posterodorsal ...
Page 26
Syrotrigonia is here elevated to full generic status because Buchotrigonia has radial flank costae in the early to middle growth stages , an internally crenulated posteroventral margin and transverse costellae to the escutcheon ( cf.
Syrotrigonia is here elevated to full generic status because Buchotrigonia has radial flank costae in the early to middle growth stages , an internally crenulated posteroventral margin and transverse costellae to the escutcheon ( cf.
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Common terms and phrases
abbreviations abundance Abyssal Africa appear arranged assemblage Atlantic authors autozooids base Basin Bathyal Bathyal Zone Benson border Brady Buntonia Cape Town cent coast collected colony continental d'Orbigny deposits depth described Description distribution dorsal Durban Elphidium Family fauna figures foramen Foraminifera Formation forms genus Group illustrations included indicated Journal known Krithe sp Kükenthal lateral length locality Lower major margin masses material McMillan mean Neritic North Note occur Ocean opisthotic original ostracod painted peduncle Pleistocene polyp posterior present prootic rachis range recorded references region relatively Remarks ridge rounded salinity samples Scale sclerites separates shelf shows side similar South African South African Museum south-western southern southern Africa species specimen squamosal stone surface suture Table teeth tests Unit University Upper ventral water depth Zone