Annals of the South African Museum, Volume 83The Museum, 1981 - Natual history |
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Page 192
... terminate in prominent bullae on the umbilical shoulder of the final whorl , from which fasciculate bundles of commonly three , rarely only two , secondary ribs arise , generally with an intercalated rib between bundles . The coarse ...
... terminate in prominent bullae on the umbilical shoulder of the final whorl , from which fasciculate bundles of commonly three , rarely only two , secondary ribs arise , generally with an intercalated rib between bundles . The coarse ...
Page 206
... terminate in bullae which give rise to bundles of prorsi- radiate secondary ribs . The secondaries sometimes bifurcate on the flanks so that there are about 115 ribs across the venter of the final whorl . Parabolae are lacking and the ...
... terminate in bullae which give rise to bundles of prorsi- radiate secondary ribs . The secondaries sometimes bifurcate on the flanks so that there are about 115 ribs across the venter of the final whorl . Parabolae are lacking and the ...
Page 325
... terminate in prominent bullae on the umbilical shoulder , from which arise 3-5 prorsiradiate secondaries with 1-3 intercalated ribs between bundles . There are 16 secondaries per 3 bullae , with about 125 ribs across the venter of the ...
... terminate in prominent bullae on the umbilical shoulder , from which arise 3-5 prorsiradiate secondaries with 1-3 intercalated ribs between bundles . There are 16 secondaries per 3 bullae , with about 125 ribs across the venter of the ...
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Common terms and phrases
abbreviations adoral portion Africa Ammonites Amphipoda Astieria atherstoni Sharpe Barnard Baumberger Besairie bicuspidata bifurcate Bochianites body chamber Böse Broom Cantu Chapa Cape Province Cape Town carapace Cistecephalus Collignon compressed Coxa Crustacea d'Orbigny Decapoda densicostatus dentary diameter Dicynodon Diictodon dimorphism distal Distoloceras dorsal fauna figured final whorl forms genera genus growth stages Hauterivian holotype Imlay inflated inner whorls intercalated ribs Kingoria lateral views lectotype macroconch male margin material Maxilla Maxilliped Olcostephanus Olcostephanus Oudenodon outer whorl parabolae Paramelita paratypes Peponocephala Pereopod peristome posterior primary ribs prominent prorsiradiate secondaries ribs between bundles Riccardi Rogersites rursiradiate primaries secondary ribs segment setae slightly South African Museum Spath species spines Subastieria Sundays River Sundays River Formation synonym Taraises Formation terminate Thieuloy Type specimen Type specimen Skull Uitenhage umbilical bullae umbilical seam umbilical shoulder umbilical tubercles umbilical walls umbilicus Upper Valanginian uropod Valanginian Vema venter Ventral and lateral ventral views whorl section