Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum

abbreviated according addition Angola aperture appear Australia author's name authors Basin becomes besairiei Cape Basin capital ceras climate coiling Collection Collignon common consists definitely described DESCRIPTION differences dimorphism distinct distribution effects Ellipsoceras et al faunas figures followed forms Förster genera genus given Hamites Hamitoides heteromorph Holotype illustrations India initial italics Kennedy Klinger known Labe Labeceras and Myloceras Labeceras crassetuberculatum Labeceras plasticum Labeceratinae lateral lateral lappets letter lobes locality lower mainly material McNamara Myloceras gr Myloceras serotinum Spath Note occur original Ornament possible probably range recorded rectum reduced references Reyment ribs River seems separates shaft similar single Smith South African Museum South Atlantic southern species specimens stratigraphic subfamily Labeceratinae suggested Synonymy systematics type species umbilical tubercles Upper Albian ventral Whitehouse whorl section Zone Zululand