Annals of the South African Museum, Volume 75The Museum, 1978 - Natual history |
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Page 61
... venter to larger growth stages , so that the ventro - lateral shoulders tend to become subangular . Fine flank lirae increase by bifurcation and intercalation across the venter . These ribbing characteristics are developed in a number ...
... venter to larger growth stages , so that the ventro - lateral shoulders tend to become subangular . Fine flank lirae increase by bifurcation and intercalation across the venter . These ribbing characteristics are developed in a number ...
Page 63
... venter throughout ontogeny , having more frequent flared ribs and in that the rib density remains the same across the venter . Gaudryceras stefaninii ( Venzo ) ( 1936 : 21 , pl . 2 ( figs 3-4 ) ) from the Cenoma- nian of Zululand bears ...
... venter throughout ontogeny , having more frequent flared ribs and in that the rib density remains the same across the venter . Gaudryceras stefaninii ( Venzo ) ( 1936 : 21 , pl . 2 ( figs 3-4 ) ) from the Cenoma- nian of Zululand bears ...
Page 74
... venter . Moderately evolute , with 2 distinct orders or ribbing ; distant , long flexuous main ribs with many shorter , flexuous intercalated ribs . ' The lectotype of Austiniceras austeni is a gigantic specimen 410 mm in diameter and ...
... venter . Moderately evolute , with 2 distinct orders or ribbing ; distant , long flexuous main ribs with many shorter , flexuous intercalated ribs . ' The lectotype of Austiniceras austeni is a gigantic specimen 410 mm in diameter and ...
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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