Annals of the South African Museum, Volume 75The Museum, 1978 - Natual history |
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Page 100
... umbilical shoulder . Ornament com- prises alternating long and short ribs , rigid , robust , and totalling 25 on the outer whorl . Main ribs arise from prominent , rounded umbilical tubercles , while all ribs are ornamented with upper ...
... umbilical shoulder . Ornament com- prises alternating long and short ribs , rigid , robust , and totalling 25 on the outer whorl . Main ribs arise from prominent , rounded umbilical tubercles , while all ribs are ornamented with upper ...
Page 117
... umbilical bullae and coarser , more distant flank ribbing . Metoicoceras crassicostae Stephenson ( 1952 : 210 , pl ... umbilical seam egressing markedly on the outer whorl ; there are about 11 long ribs on the outer whorl which arise ...
... umbilical bullae and coarser , more distant flank ribbing . Metoicoceras crassicostae Stephenson ( 1952 : 210 , pl ... umbilical seam egressing markedly on the outer whorl ; there are about 11 long ribs on the outer whorl which arise ...
Page 123
... umbilical wall , slightly undercut at the umbilical seam . The umbilical shoulder is abruptly rounded . At a diameter of 48 mm there are 41 ribs per whorl , with only 19 arising from bullae on the umbilical shoulder . These bullae are ...
... umbilical wall , slightly undercut at the umbilical seam . The umbilical shoulder is abruptly rounded . At a diameter of 48 mm there are 41 ribs per whorl , with only 19 arising from bullae on the umbilical shoulder . These bullae are ...
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Common terms and phrases
1-segmented abdominal somites accessory flagellum Adult male aesthetascs Africa Ammonites Antenna 1 Fig antennal notch anterolateral angle Basis of maxilliped basis of pereiopod Bodotria body chamber Calycoceras Cape carapace Carapace Fig carina carpus Cenomanian Cobban & Scott Collignon crabeater seal Cumacea diameter DIEGO Dorsal view endopod eyelobe fauna flagellum flanks genus geol half length holotype inner edge Integument Iphinoe ischium Kanabiceras lateral carina Lateral view long as deep lower ventro-lateral tubercles Matsumoto maxilliped maxilliped 3 Fig merus merus and carpus Metoicoceras Moreman outer whorl Ovigerous female paratype Peduncle of uropod pereiopod 1 Fig pleopods plumose setae Pseudocalycoceras pseudorostral lobes Puzosia rest of limb Sciponoceras Second pedigerous somite segment of exopod serrate setae shorter sideplates slightly longer South African Museum Spath specimens spines on inner stout subequal in length Thomel Turonian twice length Type species umbilicus uropod Vascoceras venter ventral view of carapace Watinoceras whorl section