Mandibular Morphology Of The Mid-Miocene Seal Devinophoca Claytoni (Carnivora, Phocidae, Devinophocinae) Author Rahmat, S. J. Author Koretsky, I. A. text Vestnik Zoologii 2018 2018-12-01 52 6 509 520 http://dx.doi.org/10.2478/vzoo-2018-0052 journal article 10.2478/vzoo-2018-0052 2073-2333 6455017 Devinophoca claytoni Koretsky & Holec, 2002 ( figs 1–3 ; tables 1–2) R e f e r r e d m a t e r i a l: SNMZ 25510, Incomplete left mandible missing ramus and most teeth. Range: Badenian, early middle Miocene (16.3–12.8 Ma; Wagreich et al., 2014 ); Central Paratethys, Vienna Basin of Western Slovakia . A m e n d e d d i a g n o s i s: Body of mandible low in height ( 12 mm ) and retromandibular (length ~ 19 mm ) region flat (similar to D. emryi ), with long, wide and round alveoli; mental process not present as opposed to D. emryi , but located between p1 and p2; symphyseal part pronounced, symphysis reaches anterior alveolus of p2 (similar to D. emryi ); p3–m1 tooth row oriented parallel to mandibular axis (similar to D. emryi ); p4 alveoli wider and longer than those of m1 (similar to D. emryi ); m1 single rooted (as opposed to D. emryi , with fused double-rooted m1); p2 and canine oriented obliquely to mandibular axis (as opposed to D. emryi ); one lower incisor (as in D. emryi ); diastemata absent (similar to D. emryi ).