. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 22. Krithe, J(c)-1 borehole. A. Krithe sp. 2329, SAM-PC6536, RV, 2 152 m, Turonian, SEM 2330. B. Krithe sp. 2329, SAM-PC6537, LV, 2 201 m, Upper Cenomanian, SEM 2333. C. Krithe sp. 2332, SAM-PC6538, RV, 2 176 m, Turonian, SEM 2331. Scale bars: A-B = 100 fx, C = 300 ,u. Age and distribution Turonian, 2 176 m (7 140 ft), J(c)-1 borehole. Family Trachyleberididae Sylvester-Bradley, 1948 Subfamily Unicapellinae Dingle, 1981 Seven genera have been recognized in this subfamily, which was at its most d
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 22. Krithe, J(c)-1 borehole. A. Krithe sp. 2329, SAM-PC6536, RV, 2 152 m, Turonian, SEM 2330. B. Krithe sp. 2329, SAM-PC6537, LV, 2 201 m, Upper Cenomanian, SEM 2333. C. Krithe sp. 2332, SAM-PC6538, RV, 2 176 m, Turonian, SEM 2331. Scale bars: A-B = 100 fx, C = 300 ,u. Age and distribution Turonian, 2 176 m (7 140 ft), J(c)-1 borehole. Family Trachyleberididae Sylvester-Bradley, 1948 Subfamily Unicapellinae Dingle, 1981 Seven genera have been recognized in this subfamily, which was at its most diverse in the late Cretaceous. All range into the Maastrichtian, and five occur in Campanian strata (Fig. 23). Unicapella is the first to appear (Coniacian), but Her rigocy there, Dutoitella, Paleoabyssocy there, and Atlantic}'there all have their first records more or less simultaneously (Campanian) in widely scattered locations (?California, southern Africa, south Atlantic). Benson's (1977) and Dingle's (1981) work suggests that the Southern Hemisphere genera had adapted to relatively deep-water environments during the Cretaceous, and that some persisted into the Tertiary as typical deep-water, cosmopolitan taxa. Similar. 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
