Annals of the South African Museum, Volume 92The Museum, 1984 - Natual history |
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Page 189
... zulu is an evolute form with an umbilical diameter between 45 and 50 per cent of the total di- ameter with whorls ... zulu includes P. ( Z. ) Fig . 47. Peroniceras ( Zuluiceras ) zulu van Hoepen , 1965. SAS Z735 , the holotype of Van ...
... zulu is an evolute form with an umbilical diameter between 45 and 50 per cent of the total di- ameter with whorls ... zulu includes P. ( Z. ) Fig . 47. Peroniceras ( Zuluiceras ) zulu van Hoepen , 1965. SAS Z735 , the holotype of Van ...
Page 190
... zulu differs from P. ( Z. ) henniei in having a wider umbilicus and more angular whorl section , but it is clear that the latter is derived from P. ( Z. ) zulu through progressive increase in involution and rounding of the whorl section ...
... zulu differs from P. ( Z. ) henniei in having a wider umbilicus and more angular whorl section , but it is clear that the latter is derived from P. ( Z. ) zulu through progressive increase in involution and rounding of the whorl section ...
Page 208
... zulu . The holotype of P. ( Z. ) proximum ( Fig . 62 ) is also a large specimen consisting of part of two successive whorls of which only a small part is body chamber . Again the looser coiling suggests that it connects morpho ...
... zulu . The holotype of P. ( Z. ) proximum ( Fig . 62 ) is also a large specimen consisting of part of two successive whorls of which only a small part is body chamber . Again the looser coiling suggests that it connects morpho ...
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Common terms and phrases
abdominal segments adult Africa Ammonites antennae apex arthropods Barnard beetles brown brownish Cape Natal Cape Point Cape Town carcasses cerci Collected Collignon colour Coniacian d'Orbigny December dorsal view dravidicum Kossmat eggs elytra Family fauna genus Grossouvre hatched Head henniei Holotype inner whorls Labium large numbers larvae left lateral view lobe Locality long setae Lucia Formation mandible margae margin Matsumoto maxilla mesal mesothoracic Middle Coniacian Mollusca natalensis nymphs ocelli ornament outer whorls oval pairs of legs pale Paratype Peroniceras Peroniceras Peroniceras Zuluiceras piceous posterior pronotum Protexanites Pupa R.S. Africana R.S. Pieter Faure radula radula slide reddish Redtenbacher ribs River Santonian setae Shell shiny side South African Museum Sowerby specimens spines spiracles subfamily subtricarinatum suture suture-line Syntypes text-fig Tomlin tridorsatum Schlüter type species umbilical undulatocarinatum Upper Coniacian valves venter ventral view ventrolateral tubercles westphalicum whorl section Wiedmann yellowish Zone zulu Zuluites Zululand