. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CRETACEOUS FAUNAS FROM SOUTH AFRICA 225. Fig. 32. Gunnarites antarcticus (Weller, 1903); BMNH C83334, from locality 115, Zululand, Maastrichtian a. x 1. non-bullate ribs extend to the umbilical shoulder between these groups. Shorter, intercalated ribs arise around mid-flank. The ribs are initially narrow, but broaden over the venter, are flat-topped, prorsiradiate and straight or feebly flexuous, totalling over 60 per whorl. All are strongly denticulate, the spiral denticulations most prominent on th
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CRETACEOUS FAUNAS FROM SOUTH AFRICA 225. Fig. 32. Gunnarites antarcticus (Weller, 1903); BMNH C83334, from locality 115, Zululand, Maastrichtian a. x 1. non-bullate ribs extend to the umbilical shoulder between these groups. Shorter, intercalated ribs arise around mid-flank. The ribs are initially narrow, but broaden over the venter, are flat-topped, prorsiradiate and straight or feebly flexuous, totalling over 60 per whorl. All are strongly denticulate, the spiral denticulations most prominent on the shell over the ventrolateral and ventral regions. There are six narrow, deep constrictions per whorl, preceded by a thickened rib. and followed by a broad interspace, sometimes with associated rather feeble riblets. The deeply incised suture-line (Fig. 31) is typically Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
