Annals of the South African Museum, Volume 96The Museum, 1985 - Natural history |
From inside the book
Results 1-3 of 9
Page 295
... helix . Phragmocone ornamented as in Ancyloceras , with periodic trituberculate ribs . Final hook with close , narrow , sharp ribbing which bifurcates or trifurcates irregularly from an umbilical tubercle . Suture line as in Ancyloceras ...
... helix . Phragmocone ornamented as in Ancyloceras , with periodic trituberculate ribs . Final hook with close , narrow , sharp ribbing which bifurcates or trifurcates irregularly from an umbilical tubercle . Suture line as in Ancyloceras ...
Page 320
... helix is followed by a planispirally coiled section of variable duration , which embraces the initial helix , finally uncoiling into a shaft and recurved hook . In some forms an uncoiled section has not yet been recorded , and it is ...
... helix is followed by a planispirally coiled section of variable duration , which embraces the initial helix , finally uncoiling into a shaft and recurved hook . In some forms an uncoiled section has not yet been recorded , and it is ...
Page 326
... helix consisting of at least five whorls , surrounded by one or two or more planispiral whorls . No uncoiled section is present . The whorls of the helix are tightly coiled and impressed ; they are either dextral or sinistral . Of 57 ...
... helix consisting of at least five whorls , surrounded by one or two or more planispiral whorls . No uncoiled section is present . The whorls of the helix are tightly coiled and impressed ; they are either dextral or sinistral . Of 57 ...
Other editions - View all
Common terms and phrases
abbreviations Aedeagus Age and distribution Agulhas Bank Alcyonium variabile ammonite Ancyloceras apex apical Aptian Bairdoppilata Barremian Barremian of western Bay borehole bicuspidata Brachycythere Campanian Cape Peninsula Cape Town Cenomanian Colchidites vulanensis Colophon Coniacian CPBA Cretaceous cruickshanki Cypraea Cypraeidae Cythereis Cytherelloidea described Dingle False Bay faunas female fuscorubra genera genus Gibberleberis Group habitat haughtoni Haughtonileberis Helicancylus Heteroceras holotype Indet iutsui J(c)-1 borehole K. H. Barnard Kakabadze 1971a Klinger & Kennedy labrum Lampanyctus lateral locality longicaudata Maastrichtian male mandibles mantle margin material Metalcyonium morphology Mtubatuba ornament ostracod outcrops paratypes patagonicum pondolandensis posterior pronotum range referred region ribs Richards Bay Río Mayer Rouchadzé 1933 samples Santonian sclerites shaft shell South African Museum south-east Africa specimens stations stokoei subfamily suckers Swartberg Table taxa text-fig tibia Tonohamites Toxoceratoides tubercles Turonian Umzamba bed umzambaensis Upper Barremian variability Ventral process vulanensis australis western Georgia whorl section Zululand