. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 88 ANNALS OF THE SOUTH AFRICAN MUSEUM growth lines and microtuberculation as described by Bandel et al. (1982), Landman (1982) and Landman & Bandel (1985), whereas internal moulds show details of early suture ontogeny (Figs 6IB, 62A, 64B, 65B) and the nepionic constriction (Figs 61 A, 64A-B). MUSCLE SCARS Records of muscle scars in Baculitidae are rare. In a pioneering study nearly a century ago, Crick (1898) described and figured muscle scars in Baculites ovatus (1898: 77, pi. 17 (figs 1-4)) and
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 88 ANNALS OF THE SOUTH AFRICAN MUSEUM growth lines and microtuberculation as described by Bandel et al. (1982), Landman (1982) and Landman & Bandel (1985), whereas internal moulds show details of early suture ontogeny (Figs 6IB, 62A, 64B, 65B) and the nepionic constriction (Figs 61 A, 64A-B). MUSCLE SCARS Records of muscle scars in Baculitidae are rare. In a pioneering study nearly a century ago, Crick (1898) described and figured muscle scars in Baculites ovatus (1898: 77, pi. 17 (figs 1-4)) and Eubaculites vagina (1898: 78, pi. 17 (fig. 1)). Kennedy & Cobban (1976, pi. 2 (fig. la-b)) figured paired dorsal muscle scars in Baculites codyensis. Klinger & Kennedy (1980: 299, figs 3d, 4b, 5b) recorded a slight, median dorsal ridge in Eubaculites latecarinatus and in E. vagina. They suggested that this structure might be associated with the muscular attachment of the animal to the shell. Henderson (1984), in contrast, suggested that subepithelial muscle attachment in ammonites was along the line of contact of the septum and shell wall, and that the 'muscle scars' of previous workers perhaps represented the 'imprint of internal organs', although they could be viewed as 'additional sites of muscle attachment, separated from those. 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
