Dakkamys, BARRYI LINDSAY, 1988 (Lindsay, 1988)

Antoñanzas, Raquel López, 2009, First Potwarmus from the Miocene of Saudi Arabia and the early phylogeny of murines (Rodentia: Muroidea), Zoological Journal of the Linnean Society 156, pp. 664-679 : 671

‘ DAKKAMYS ’ BARRYI LINDSAY, 1988

This species was erected on the basis of one mandible, three maxillary fragments, and two isolated cheek teeth from the Middle Miocene localities YGSP 491 and YGSP 726 in the Chinji Formation , Potwar Plateau, Pakistan. The holotype ( YGSP 24717 ) is a right fragmentary maxilla with M1–M3 from locality YGSP 726 ( Lindsay, 1988: pl. 9, fig. f). The cladistic analysis (see below) suggests that the generic allocation of this species is unjustified: this taxon should receive a new generic designation .

The M1s of ‘ Dakkamys ’ barryi have a very large enterostyle that joins with the posterior side of the protocone, and long anterior arms of the lingual cusps. In contrast, AJ7 shows an isolated and small enterostyle and lacks anterior arms of the protocone and hypocone. The M2s of ‘ D. ’ barryi differ from AJ11 and AJ 12 in having long anterior arms of lingual cusps (they are absent in the Arabian species). Finally, the m1 of ‘ D. ’ barryi shows a well-developed anteroconid, which is lacking on AJ13.