. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. MODERN GIRAFFES AND THE FOSSIL GIRAFFIDS OF AFRICA 523 1935; Cooke, 1949; Singer, 1954). Nevertheless, those features in common with Hydaspitherium are also exaggerated and it is more massive. On this basis, and because Hydaspitherium has not yet been discovered in Africa, it is considered reasonable to refer this single, very worn tooth to Sivatherium with which it essentially shares most features. As regards the specific designation, although it bears a resemblance to F 2993, Old. 4 and 109 from Ol
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. MODERN GIRAFFES AND THE FOSSIL GIRAFFIDS OF AFRICA 523 1935; Cooke, 1949; Singer, 1954). Nevertheless, those features in common with Hydaspitherium are also exaggerated and it is more massive. On this basis, and because Hydaspitherium has not yet been discovered in Africa, it is considered reasonable to refer this single, very worn tooth to Sivatherium with which it essentially shares most features. As regards the specific designation, although it bears a resemblance to F 2993, Old. 4 and 109 from Olduvai, the latter specimens are closer to Hopefield 4027, 4023 and 4024 and share the same range of variation. MMK 3685 tends to fall just outside this group, but it is a single specimen and no other material from Africa can yet be referred to it. Furthermore there are no associated skeletal remains of the same animal. It is probable that if Cooke and Wells had all the comparative materia] from Olduvai and Hopefield available in 1947, they would not have referred M 533B1 to G. cingulatum. It could almost be considered as a nomen vanum, but in the above discussion its generic nature is established. Consequently in the present state of our informa- tion it would be preferable to retain cingulatum as a species of Fig. 25. Superimposition of dio- ptographs of the lateral aspects of ( ), F 2989 ( ), and Hopefield 4025 ( ). The probable crown-root junction of is superimposed on that of the other two premolars. The crown of F 2980 is worn right down to the root and beyond the crown-root junction except for a minute fragment buccally (on the left). The buccal border of 4025 is broken away so that the overlap of is only apparent. crown-root Junction W F 39 (G. haughtoni Cooke 1949): In the description of the tooth (Section II, chapter 2), statistical data was presented to support the hypothesis that this specimen is not a lower molar. This may be strengthene
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