Palaeoreas sp.

Kostopoulos, Dimitrios S. & Bernor, Raymond L., 2011, The Maragheh bovids (Mammalia, Artiodactyla): systematic revision and biostratigraphiczoogeographic interpretation, Geodiversitas 33 (4), pp. 649-708 : 678

cf. Palaeoreas sp. ( Fig. 18 )

MATERIAL EXAMINED. — HUW:P2-M3sin, MMTT7/2159 ( LP = 25.0 mm, LM = 38.4 mm, LPM = 62.2 mm); p2- m3dex, MMTT7/2338 (Lp = 23.5 mm, Lm = 41.6 mm, Lpm = 65.5 mm); p4-m3dex, MMTT7/1912 (Lm = 43.3 mm).

REMARKS

A medium sized antelope from MMTT7 is documented in the HUW collection by a few toothrows ( Fig. 18 ), previously referred to as Prostrepsiceros ( Bernor 1978) . The premolars represent 65% of the upper and 56.5% of the lower molar row. In distinction from the similar-sized Prostrepsiceros , the teeth are more brachyodont with bulbous styles and ribs and the tooth enamel is thiny rippled. The upper premolars are simple with the P2 as long as the P3 but narrower ( Fig. 18E ). The upper molars bear a central islet (double on M2) and the metastyle of M3 directs distally ( Fig. 18E ). The hypoconid of the p3 and p4 is well-distinguished from the protoconid by a deep labial groove ( Fig. 18A, C ). The anterior valley of the p4 is open and the metaconid is weakly developed anteroposteriorly and fused in later stages of wear with the entoconid. All lower molars of MMTT7/2338 bear a rather strong basal pillar and a weak goat fold, characters that appear, however, to be variable: in MMTT7/1912 a weak basal pillar is present only on m1 whereas the goat fold of m3 is significantly strong. The main dental characters of these specimens and their proportions match pretty well those of Palaeoreas lindermayeri ( Wagner, 1848) from Greece and Bulgaria ( Gaudry 1865; Gentry 1971; Geraads et al. 2003) from which they differ in the development of accessory features (goat folds, basal pillars, etc.) but the material is certainly insufficient for an accurate identification.

Figures

FIG. 18. — Cf. Palaeoreas sp. from Maragheh: A-C, right mandible (MMTT7/2338) in occlusal (A), labial (B) and lingual (C) views; D, E, left P2-M3 (MMTT7/2159) in labial (D) and occlusal (E) views. Scale bar: 5 cm.