Sivameryx moneyi, Lydekker, 1878

Miller, Ellen R., Gunnell, Gregg F., Gawad, Mohammad Abdel, Hamdan, Mohamad, El-Barkooky, Ahmed N., Clementz, Mark T. & Hassan, , 1914, Anthracotheres from Wadi Moghra, early Miocene, Egypt, Journal of Paleontology 88 (5), pp. 967-981: 968-970

publication ID

10.1666/13-122

persistent identifier

http://treatment.plazi.org/id/35429620-2C89-9816-C734-3CCA53EF9FA1

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Donat

scientific name

Sivameryx moneyi
status

 

Brachyodus mogharensis Pickford, 1991

Type.-M 15020, right maxilla P1-M3 (Fig. 2B) (also figured in Pickford, 1991 pl. 1, fig.1).

Diagnosis.-Smaller than B. depereti, similar in size to Brachyodus aequatorialis  ; differs from B. aequatorialis  in having smaller upper premolars, more distinct barrels on the buccal cusps of upper molars, more strongly developed buccal cingula on the upper premolars and molars; infraorbital foramen opens superior to P4, length of the molar tooth row about 114 mm (after Pickford, 1991).

Occurrence.-Early Miocene, Wadi Moghra, Egypt.

Remarks.-The type specimen of Brachyodus mogharensis is a maxilla in which the upper molar metaconules lack an anterolingual crest, there are continuous cingula around P2-4, the lingual portion of which is particularly sharp-edged and beaded, P4 has a single lingual cusp and a strong barrel on the buccal aspect of the tooth. Brachyodus mogharensis differs from B. depereti by its smaller size (Table 1, Fig. 2B, 2C).

Brachyodus mogharensis is known from a single maxillary specimen. When the taxon was described (Pickford, 1991), the holotype maxilla was accompanied by a hypodigm comprised of five unnumbered mandibular specimens in various stages of wear. One of these specimens (CGM 30775, figured in Fourtau, 1920, fig. 31), has been moved to a new taxon (see below), and the remaining specimens could not be clearly distinguished from Brachyodus depereti and so have been assigned to that species. Field work at Moghra in recent years has not yielded any additional specimens clearly attributable to B. mogharensis  .