Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . Fig. 5. Ancyloceras {Adouliceras) sp. cf. ajax Anderson, 1938. SAS Zo(n) from locality 162,Mfongozi Creek, Zululand, Lower? Aptian. x 0,4. but it appears that the ribs crossed the venter without diminution. There areabout 25 ribs in a distance equal to the whorl height. At a point 70-80 mmbefore the bend in the crozier, strong ribs appear, becoming progressivelystronger towards the bend. Umbilical, lateral and ventral tubercles develop onthe major ribs. The major ribs cross the flanks radially and curve forward overth
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . Fig. 5. Ancyloceras {Adouliceras) sp. cf. ajax Anderson, 1938. SAS Zo(n) from locality 162,Mfongozi Creek, Zululand, Lower? Aptian. x 0,4. but it appears that the ribs crossed the venter without diminution. There areabout 25 ribs in a distance equal to the whorl height. At a point 70-80 mmbefore the bend in the crozier, strong ribs appear, becoming progressivelystronger towards the bend. Umbilical, lateral and ventral tubercles develop onthe major ribs. The major ribs cross the flanks radially and curve forward overthe venter, but are effaced on the dorsum. 228 ANNALS OF THE SOUTH AFRICAN MUSEUM
Size: 1615px × 1548px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectnaturalhistory
