. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. NEW CYNODONT FROM MOLTENO BEDS AND ORIGIN OF TRITYLODONTIDS 3 the root in the second left incisor is badly preserved and the third left alveolus is empty. The damaged tip of a replacing incisor is visible in the first right alveolus. In cross-section this tip is crescent-shaped with a marked ridge in the centre of the posterior surface. The enamel of the anterior surface of the crown is thick in contrast to the exceptionally thin enamel on the posterior surface. The second right incisor is the best p
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. NEW CYNODONT FROM MOLTENO BEDS AND ORIGIN OF TRITYLODONTIDS 3 the root in the second left incisor is badly preserved and the third left alveolus is empty. The damaged tip of a replacing incisor is visible in the first right alveolus. In cross-section this tip is crescent-shaped with a marked ridge in the centre of the posterior surface. The enamel of the anterior surface of the crown is thick in contrast to the exceptionally thin enamel on the posterior surface. The second right incisor is the best preserved of the series. This tooth. Fig. 1. Scalenodontoides macrodontes gen. et sp. nov. Dorsal view of lower jaw, X^. , Unerupted postcanines; , Replacing incisor. extends almost directly forwards from the mandible and this direction does not appear to be the result of distortion. This incisor is chisel-shaped with a fairly flat anterior surface and rounded posterior surface. The length of the crown measured from the posterior border of the alveolus to the apex is 3-3 cm. The anterior-posterior measurement at the alveolar border is 1-5 cm. and the medio-Jateral 2-0 cm. The central ridge visible on the posterior border of the. 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
