. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. ; frjaassssg Fig. 51. Apertures of macro- and microconchs of Baculites capensis Woods, 1906. Both x B. subanceps Haughton—Matsumoto (1959, pi. 35 (fig. 1) as B. aff. anceps); Klinger & Kennedy (1997, fig. 130g). B. sulcatus Baily—Klinger & Kennedy (1997, figs 67h-j, 75a-c). B. tanakae Matsumoto & Obata—Matsumoto & Obata (1963, pi. 16 (fig. 4)). B. thomi Reeside—Cobban & Kennedy (1991a, pi. 1 (figs 7-10)). B. undulatus d'Orbigny—Matsumoto & Obata (1963, pi.
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. ; frjaassssg Fig. 51. Apertures of macro- and microconchs of Baculites capensis Woods, 1906. Both x B. subanceps Haughton—Matsumoto (1959, pi. 35 (fig. 1) as B. aff. anceps); Klinger & Kennedy (1997, fig. 130g). B. sulcatus Baily—Klinger & Kennedy (1997, figs 67h-j, 75a-c). B. tanakae Matsumoto & Obata—Matsumoto & Obata (1963, pi. 16 (fig. 4)). B. thomi Reeside—Cobban & Kennedy (1991a, pi. 1 (figs 7-10)). B. undulatus d'Orbigny—Matsumoto & Obata (1963, pi. 11 (figs 2-3)). B. vanhoepeni Venzo—Klinger & Kennedy (1997, fig. 92d, g-h). B. ventroplanus Collignon—(1969, pi. 520 (fig. 2050). B. yokoyamai Tokunaga & Shimizu—Matsumoto & Obata (1963, pi. 11 (fig. 1), pi. 14 (fig. 4); Renz (1982, pi. 34 (fig. 4)) (as B. inornatus); Cobban 1990, pi. 9 (figs 21-22). In our South African material (Klinger & Kennedy 1997), apertures are preserved in B. bailyi, B. capensis, B. sulcatus, B. vanhoepeni, B. nibelae and B. aff. rectus. The known apertures in all Baculites have a short dorsal rostrum, a longer ventral rostrum, and lateral sinuses, but the relative proportions and orientation vary considerably. In the earliest, Turonian, Baculites, B. undulatus and B. yokoyamai the ventral rostrum is short, the dorsal one poorly developed, and the aperture may face slightly upward, very much as in some Sciponoceras. In later Baculites the ventral and dorsal rostra are more prominent. In some, the ventral rostrum is very long and lingoid to spoon-shaped, with a distinct lateral sinus ( B. sulcatus in Klinger & Kennedy 1997, fig. 67h-j; B. thomi in. 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 Muse
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
