. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. LATE CENOZOIC CARNIVORA OF SOUTH-WESTERN CAPE PROVINCE 79 prominent posterior accessory cusp, which is flanked posteriorly by a well- developed cingulum. This is the only premolar amongst all those which are referred to this species in which more than just the principal cusp is present. On the other hand, the Mx of L 1700 is virtually identical to that of L 12863. These teeth are in turn very similar to the Mx of the Bed 3a form, except that their trigonids are less enlarged relative to the talonids.
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. LATE CENOZOIC CARNIVORA OF SOUTH-WESTERN CAPE PROVINCE 79 prominent posterior accessory cusp, which is flanked posteriorly by a well- developed cingulum. This is the only premolar amongst all those which are referred to this species in which more than just the principal cusp is present. On the other hand, the Mx of L 1700 is virtually identical to that of L 12863. These teeth are in turn very similar to the Mx of the Bed 3a form, except that their trigonids are less enlarged relative to the talonids. The over- all size of the Bed 3a specimens is also greater and they have a more pronounced cingulum at the anterior end. The M2 of L 12863 is a small, single-rooted tooth, which is slightly elongated antero-posteriorly. There are two small cusps situated at the anterior and posterior ends of the buccal side of the tooth, while on the lingual side there are two cusps situated one behind the other at the anterior end. This tooth is accommodated quite well by the M2 alveolus of L 1700. The M2 of the Bed 3a form is not known, but judging from the size of the M2 alveolus of L 2672, it was similar in size to that of L 12863. The premolars of both Bed 2 and Bed 3a forms have markedly divergent anterior and posterior roots, which indicates that these teeth were well spaced in both mandible and maxilla. This is evident in both the mandibular fragments which are known (L 1700 & L 2672), even though the former is much more slender, comparing in size with that of modern Canis mesomelas. The fragmentary braincase of L 13097 (Table 12) is a significant specimen, since, although it is so incomplete, it does exhibit some remarkable charac- teristics. The posterior constriction of the braincase is far more pronounced than in any modern viverrid species, while the posterior part of the sagittal crest is exceptionally high. The transverse compression of the posterior part of the skull is car
Size: 1789px × 1397px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky