Angelone et al.—A new endemic leporid from the early Pleistocene of Sardinia


509


Figure 2. Sardolagus obscurus n. gen. n. sp. (1–5, 9) paratype (DSG/URT-053/504), incomplete cranium with left P2-M3 (9) in dorsal (1), lateral (2), rostral (3), ventral (4), and caudal (5)views;(6–8) holotype (DSG/URT-053/503), left incomplete hemimandible with p3-m3 (8)in lingual (6) and dorsal (7)views.


2009 Leporidae n. gen. n. sp.; Palombo, p. 369, fig. 2. 2010 Oryctolagus n. sp.; Angelone et al., p. 5. 2014 Leporidae n. gen. n. sp.; Palombo and Rozzi, p. 140, fig. 3. 2015 cf. Oryctolagus aff. lacosti (Pomel);Angelone et al. p. 293.


Holotype.—Left incomplete hemimandible with p3-m3 (Fig. 2.6–2.8), DSG/URT-053/503; early Pleistocene, MN17 (Capo Figari/Orosei 1 FSC of the Nesogoral FC); Monte Tuttavista VIIbs (Orosei, E Sardinia, Italy).


Paratype.—Incomplete cranium with left P2-M3 (Fig. 2.1–2.5, 2.9), DSG/URT-053/504; early Pleistocene, MN17 (Capo Fig- ari/Orosei 1 FSC of the Nesogoral FC); Monte Tuttavista VIIbs (Orosei, E Sardinia, Italy). The cranium is associated with the holotype in a block of breccia, and they probably belong to one individual.


Diagnosis.—Small-sized leporid with the following features: simple P2 without or with incipient hypoflexus (prevailing LL- morphotype I) and very shallow mesoflexus (prevailing BMR- morphotype A); significantly elongated p3 with exclusively of A1/PR3 morphotype, p3 hypoflexid short (within A1/PR3; ~70–90% of W) with feeble or missing anterior tip and gradual transition from thick to thin enamel in its lingual end, p3 anteroconid morphologically variable with anteroflexid of variable depth (~5–20% of total L); I1/i1 markedly flattened anteroposteriorly; anterior and anterobuccal walls of p3-m2 talonids smooth; p4-m2 trigonid without anteroexternal reentrant; mandibular body and ramus robust, diastema relatively short, of almost the same length as the alveolar row of p3-m3; root end of lower incisor reaching the posterior part of p3; P3-M2 hypoflexus quite short (~70% of W), generally smooth.


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