Annals of the South African Museum, Volume 75The Museum, 1978 - Natual history |
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Page 92
... tubercles . Of these , the upper ventro - lateral tubercles are the most prominent , rising above the level of the siphonal tubercles . The latter are very weakly developed in the adult growth stages and are finally lost about half ...
... tubercles . Of these , the upper ventro - lateral tubercles are the most prominent , rising above the level of the siphonal tubercles . The latter are very weakly developed in the adult growth stages and are finally lost about half ...
Page 115
... tubercles , and in that the ribbing recurves on the body chamber . The strength of the umbilical tubercles has long been regarded as a diagnostic characteristic of many Metoicoceras species . So far as the writer is able to judge , this ...
... tubercles , and in that the ribbing recurves on the body chamber . The strength of the umbilical tubercles has long been regarded as a diagnostic characteristic of many Metoicoceras species . So far as the writer is able to judge , this ...
Page 129
... tubercle . Ornament preserved until a late stage . In most species the ribs disappear before the tubercles , and in others , the reverse is true . Outermost whorls usually smooth . Suture deeply incised and rather complicated relative ...
... tubercle . Ornament preserved until a late stage . In most species the ribs disappear before the tubercles , and in others , the reverse is true . Outermost whorls usually smooth . Suture deeply incised and rather complicated relative ...
Contents
BARNARD J L | 40 |
Province were first reported by Singer Hooijer 1958 The specimen described | 84 |
BEST P B see Ross J | 147 |
Copyright | |
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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 carapace Carapace Fig carina carpus Cenomanian cephalothorax Cobban & Scott Collignon coloradoense crabeater seal diameter 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 paratypes Peduncle of uropod pereiopod 1 Fig pleopods plumose setae Pseudocalycoceras pseudorostral lobes Puzosia rest of limb rounded 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