Pliopentalagus dietrichi (Fejfar, 1961), 1967

Popov, Vasil V., 2004, Pliocene small mammals (Mammalia, Lipotyphla, Chiroptera, Lagomorpha, Rodentia) from Muselievo (North Bulgaria), Geodiversitas 26 (3), pp. 403-491 : 446

Pliopentalagus dietrichi (Fejfar, 1961) ( Figs 21B ; 22 A-F)

Alilepus dietrichi Fejfar, 1961a: 261-276 , figs 1-6.

Pliopentalagus dietrichi – Gureev 1964: 130, 131, fig. 57. — Daxner & Fejfar 1967: 8-43, taf. I, figs 5-7, abb. 1-4a.

MATERIAL EXAMINED. — 10 p3 (Ms86-92, Ms395).

MEASUREMENTS. — p3 (L × W) = 3.90 × 2.80; 4.00 × 3.00; 4.00 × 3.20; 4.00 × 3.10; 4.00 × 2.90; 4.20 × 3.00; 3.80 × 2.90; 3.90 × -; 4.10 × -.

DESCRIPTION

p3: the main reentrant valleys (hypoflexid and metaflexid) show heavily crenulated walls, especially the posterior ones. The three reentrant folds on the anterior lobe are well pronounced. In some specimens, they are plicated, forming smaller subordinate folds.

REMARKS

There is close resemblance between the pattern of p3 and some of the available P2, P4-M 2 in the material from Muselievo, from one hand, and Pliopentalagus dietrichi , from the other ( Fejfar 1961a; Gureev 1964; Daxner & Fejfar 1967). In the same time, the p3 differs from the closely relat- ed species Pliopentalagus moladaviensis ( Gureev 1964: fig. 56), which shows an asymmetrical pattern of the occlusal surface.

Order RODENTIA Bowdich, 1821

Figures

FIG. 21. — A, Leporidae, left upper molariform tooth, Ms108, occlusal view; B, Pliopentalagus dietrichi (Fejfar, 1961), right p3, Ms92, occlusal view; C, Leporidae, right upper molariform tooth, Ms109, occlusal view; D, Leporidae, left lower molariform tooth, Ms113, occlusal view; E, Leporidae, left upper molariform tooth, Ms11, occlusal view; F, Leporidae, right, Ms110, occlusal view; G, Leporidae, right lower molariform tooth, Ms112, occlusal view. Scale bar: 1 mm.

FIG. 22. — A-F, Pliopentalagus dietrichi (Fejfar, 1961), p3 in occlusal view; A, left, Ms86; B, right, Ms87; C, right, Ms88; D, left, Ms91; E, right, Ms89; F, right, Ms90; G-I, Hypolagus beremendensis (Petényi, 1864), p3 in occlusal view; G, left, Ms95; H, right, Ms94; I, right, Ms96. Scale bar: 1 mm.