The Early Miocene Bats (Chiroptera, Mammalia) From The Karstic Sites Of Erkertshofen And Petersbuch 2 (Southern Germany) Author Rosina, Valentina V. Author Rummel, Michael text Fossil Imprint 2019 2019-12-30 75 3 - 4 412 437 http://dx.doi.org/10.2478/if-2019-0026 journal article 10.2478/if-2019-0026 2533-4069 5383141 Eptesicus cf. aurelianensis ZIEGLER , 1993 Text-fig. 8g M a t e r i a l a n d m e a s u r e m e n t s. Erkertshofen 1: BSP 1962 XIX 4197, right M2, 1.45 × 1.90. Petersbuch 2: BSP 1980 XXII 5366, right M2, ≈1.45 × ≈1.90 D e s c r i p t i o n a n d c o m p a r i s o n. The M2 crowns from Erkertshofen 1 and Petersbuch 2 show a welldeveloped cingulum and paralophs ( Text-fig. 8g 1 ). The absence of a large hypocone suggests that the tooth belongs to a vespertilionid bat. Both molars have para- and metalophs but lack the paraconules. The trigon basins are closed, the hypocones are weakly developed ( Text-fig. 8g ). The upper molars from Erkertshofen 1 and Petersbuch 2 share these features with Miostrellus or Eptesicus . Nevertheless, they are larger than all Miostrellus species ( Tab. 8 ) and, thus, more similar in size to E. aurelianensis (compare with e.g. specimen SMNS 45744 H1; Ziegler 1994: 113 , pl. 5, fig. 6). However, they differ from E. aurelianensis in having some undulated metaloph and a less developed hypocone (Textfig. 8g 2).