. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CRETACEOUS FAUNAS FROM SOUTH AFRICA 187 Baculites ambatryensis Collignon (1971: 14, pi. 645 (fig. 2392)) (herein Fig. 128) from the Lower Maastrichtian of Madagascar is also superficially similar, but has a more compressed whorl section at comparable diameters (Wb : Wh : 29), and coarse corrugations over the venter. Baculites eliasi Cobban (1958: 663, pi. 91 (figs 1-11), text-figs If-g, i-j) from the Lower Maastrichtian of the Western Interior also has a more complex suture with a constrict
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CRETACEOUS FAUNAS FROM SOUTH AFRICA 187 Baculites ambatryensis Collignon (1971: 14, pi. 645 (fig. 2392)) (herein Fig. 128) from the Lower Maastrichtian of Madagascar is also superficially similar, but has a more compressed whorl section at comparable diameters (Wb : Wh : 29), and coarse corrugations over the venter. Baculites eliasi Cobban (1958: 663, pi. 91 (figs 1-11), text-figs If-g, i-j) from the Lower Maastrichtian of the Western Interior also has a more complex suture with a constricted lateral lobe (L).. B Fig. 132. Baculites sp. from the uppermost Turonian or basal Coniacian at Mossamedes, Angola. The oldest tuberculate baculite. Cooper Collection, Museum. A. SAM-1742. B-D. SAM-1743. E. SAM-1733. F. SAM-1745. All X 1. Baculites fuchsi Redtenbacher (1873: 134, pi. 30 (fig. 15)) is difl^cult to interpret (see above, p. 47) but it is older, Santonian, being associated with B. incurvatus. Baculites inornatus Meek (1862: 316) (see especially Matsumoto 1959: 155, pi. 38 (fig. la-c), pi. 43 (fig. 5a-c), text-figs 72a-b, 73a-d, 74-79; Ward 1978: 1151, pi. 1 (figs 1-2), text-fig. 5) is a predominantly smooth species from the Lower Campanian of California, British Columbia and Hokkaido. Records of B. inornatus from the Coniacian of Venezuela by Renz (1982: 105, pi. 34 (figs 3-4, 5a-b, 6), text-fig. 80) are obvious misidentifications. The suture of B. inornatus is complex, with phylloid folioles, clearly difi'ering from our material. Baculites kotanii Matsumoto et al. (1980: 408, figs 1-2) from the Upper Campanian of Shikoku, Japan, is nearly smooth, with only faint subcostae on the flanks. Again, the suture appears to be more complex with narrower saddles and lobes than the Zululand material. Baculites vertebralis Lamarck, 1801, is a compressed, smooth species from the Upper Maastrichtian of Europe and North Africa, and resembles our largest specimen. Age difl
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