Annals of the South African Museum, Volume 83The Museum, 1981 - Natual history |
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Page 178
... macroconch dimorphs. finally, there are gigantic, generally strongly inflated forms lacking parabolae and with simple peristomes representing mature macroconchs. The intermediate groups have one feature in common; they are all inflated ...
... macroconch dimorphs. finally, there are gigantic, generally strongly inflated forms lacking parabolae and with simple peristomes representing mature macroconchs. The intermediate groups have one feature in common; they are all inflated ...
Page 176
... macroconch , but bearing four further horns ... in addition to the above specimen which is absolutely intermediate in character between macroconch and microconch , three other specimens show a slight degree of intersexuality . These ...
... macroconch , but bearing four further horns ... in addition to the above specimen which is absolutely intermediate in character between macroconch and microconch , three other specimens show a slight degree of intersexuality . These ...
Page 182
... macroconch forms of the Uitenhage olcostephanid fauna . Thus , the macroconch forms of O. atherstoni ( Sharpe ) and O. baini ( Sharpe ) differ only in degree of inflation , whilst with a broad specific interpretation it would be ...
... macroconch forms of the Uitenhage olcostephanid fauna . Thus , the macroconch forms of O. atherstoni ( Sharpe ) and O. baini ( Sharpe ) differ only in degree of inflation , whilst with a broad specific interpretation it would be ...
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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 RMT RMT Rogersites rursiradiate primaries secondary ribs segment setae Skull slightly South African Museum Spath species spines Subastieria SUID-AFRIKAANSE MUSEUM Sundays River Sundays River Formation synonym Taraises Formation terminate Thieuloy Type specimen Uitenhage umbilical bullae umbilical seam umbilical shoulder umbilical tubercles umbilical walls umbilicus Upper Valanginian uropod Valanginian Vema venter ventral views whorl section