Pliocene small mammals (Mammalia, Lipotyphla, Chiroptera, Lagomorpha, Rodentia) from Muselievo (North Bulgaria) Author Popov, Vasil V. Institute of Zoology, Bulgarian Academy of Sciences, Boul. Tsar Osvoboditel 1, 1000 Sofia (Republic of Bulgaria) popov @ zoology. bas. bg text Geodiversitas 2004 26 3 403 491 journal article 10.5281/zenodo.5377199 1638-9395 5377199 Tamias orlovi ( Sulimski, 1964 ) ( Fig. 24H ) Eutamias orlovi Sulimski, 1964: 165-169 . Tamias orlovi – Black & Kowalski 1974: 466 . MATERIAL EXAMINED . — 1 m 3 (Ms144); (L × W) = 2.02 × 1.8. DESCRIPTION The metalophid is short; the anteroconid is not distinct, incorporated in the anterolophid. The metastylid is very small, situated at the base of the metaconid. The mesolophid is relatively large. There is a well developed antero-buccal reentrant valley. The tooth has four roots but the central lingual root is fused with the posterior one. REMARKS The Muselievo specimen differs from the early Miocene species Tamias eviensis De Bruijn, Van der Meulen & Katsikatsos, 1980 in having larger size and somewhat simplified occlusal pattern; the entoconid is not well individualized on the end of the posterolophid, the mesostylid and anteroconid are poorly developed on the anterolophid. In the same time, this tooth is indentical to that of Tamias orlovi from Weze 1 ( Sulimski 1964 ).