Annals of the South African Museum, Volume 73

abbreviations adcauline Africa Ammonites Ancyloceras appear Aptian Australiceras authors base bearing becomes BMNH body chamber branches Campanian Cape capitals Casey Clark closely coiling collected Collignon colony consists constrictions Cretaceous depth described Description designated developed diameter differs Discussion distal dorsal early Eoxenopoides Family figures flanks fossil genus given gonothecae Haughton height holotype hydrothecae illustrations included indicated internode Island known lateral length lobe locality Lower margin material metres nematothecae Note occur original ornament pipids placed plates present processes Pseudophyllites recorded references region relatively Remarks reuningi ribs rounded scale segments separated shoulder side similar single slightly Smith South African Museum southern species specimens stages Station stem surface suture Synonymy Table Tetragonites text-fig Tropaeum tubercles umbilical Upper venter ventral whorl section Xenopus Zululand