. Bulletin of the British Museum (Natural History), Geology. MIOCENE CARNIVORA OF EAST AFRICA 255 are preserved and the sutures visible. The complete nasals are entirely horizontal, elongate and with parallel sides: the anterior edge is transverse with a very short lateral arm adjoining the premaxilla. The premaxillae are broken anteriorly, but the root of one incisor remains on the right side; posteriorly they extend back and overlap the nasals for some 15 mm. Between the large root of the upper canine and the premaxillary border of the maxilla is a deep groove, the lower part of which may ha
. Bulletin of the British Museum (Natural History), Geology. MIOCENE CARNIVORA OF EAST AFRICA 255 are preserved and the sutures visible. The complete nasals are entirely horizontal, elongate and with parallel sides: the anterior edge is transverse with a very short lateral arm adjoining the premaxilla. The premaxillae are broken anteriorly, but the root of one incisor remains on the right side; posteriorly they extend back and overlap the nasals for some 15 mm. Between the large root of the upper canine and the premaxillary border of the maxilla is a deep groove, the lower part of which may have accommodated the lower canine. There are in addition fragments of right frontal and parietals, the latter showing high sagittal crest. The upper molars are similar to Teratodon spekei but beyond this close similarity ends. The jaw is short and very much constricted in the premolar region. The mandible and beginning of the jugal arch are heavily built. Other than fractures due to fossilization, the bone is in good condition and shows no sign of fracture during life or any other abnormality. In contrast to this the dentition is bizarre. The beast is presumed to have had three molars, of which M 2 and M 3 are well preserved on both sides. M2 is distinguishable from that of Teratodon spekei only by the more elongate metastyle, which is extended well beyond the level of the parastyle. M 3 is a trans- verse molar of the size and proportions expected of Teratodon spekei: it has V-shaped protocone, connate paracone and metacone, the paracone slightly larger than the metacone, elongated parastyle extending to meet the metastyle of M2. In the short gap between the canine and M2 is crowded a grotesque array of 'premolars', which almost defy description. These 'teeth', as will be seen from the illustrations, cannot be numbered P14; they possess massive roots, they are not symmetrical on left and right, the crowns are worn into a longitudinal concave arc and are without trace of a cingul
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