Rhinolophus grivensis DEPÉRET, 1892

Rosina, Valentina V. & Rummel, Michael, 2019, The Early Miocene Bats (Chiroptera, Mammalia) From The Karstic Sites Of Erkertshofen And Petersbuch 2 (Southern Germany), Fossil Imprint 75 (3 - 4), pp. 412-437 : 421

Rhinolophus grivensis DEPÉRET, 1892

Text-fig. 2j, n–o

M a t e r i a l. Erkertshofen 1: BSP 1962 XIX 4194, left M2.

Erkertshofen 2: BSP 1974 XIV 1114, left C sup.

Petersbuch 2: BSP 1976 XXII 5543, left mxl with P4; PCMRCh55a, right m1; PCMRCh56a, left m2; PCMRCh56b, right m2; PCMRCh57c, right m3; PCMRCh48, right M3; PCMRCh49a, left M1 (damaged); PCMRCh49b, left M1; PCMRCh49c, left M2; PCMRCh49d, right M2; PCMRCh27, left P4; PCMRCh29, right C sup.; PCMRCh30, right C sup.; PCMRCh31, left C sup.; PCMRCh42, right C sup.; PCMRCh43, left C sup.

M e a s u r e m e n t s. See Tab. 4.

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 preserved fossils share all the morphological traits of Rhinolophus species : the upper canine is semilunar in occlusal view with a well-developed cingulum ( Text-fig. 2j ), p3 was displaced buccally from the midline of the tooth-row, and the m3 talonid is only slightly smaller than the trigonid ( Text-fig. 2o ). However, there is a significant space between the canine and P 4 in the maxillary ( Text-fig. 2n ). This is the smallest and most gracile Rhinolophus species from the studied localities ( Tab. 4) and morphologically corresponds to R. grivensis (e.g. Ziegler 2003: 456–459).

Figures

Text-fig. 2. a–e – Rhinolophus aff. lemanensis: a – PCMRCh65, left mxl with P4–M3, Petersbuch 2, ventral view; b – PCMRCh79 right mnd with C inf., Petersbuch 2, lingual view; c – PCMRCh66, right C sup., Petersbuch 2, lingual view; d – BSP 1976 XXII 5515, left mnd with m2–3, Petersbuch 2, occlusal view; e – BSP 1974 XIV 1139, left mnd with p4–m1; Erkertshofen 2, occlusal view; f, i, k–m – R. dehmi: f – BSP 1974 XIV 1118, right C sup., Erkertshofen 2, lingual view; i – BSP 1976 XXII 5507, left mnd with p4–m1, Petersbuch 2, occlusal view; k – PCMRCh32, right mxl with C sup., P4–M1, Petersbuch 2, ventral view; l – PCMRCh37, left mnd with m1–2, Petersbuch 2, occlusal view; m – PCMRCh89, right mnd with C inf., Petersbuch 2, lateral view; g–h – R. cf. delphinensis: g – BSP 1976 XXII 5522, right mxl with P4, Petersbuch 2, ventral view; h – BSP 1962 XIX 4153, left mnd with m1–3, Erkertshofen 1, occlusal view; j, n, o – R. grivensis: j – PCMRCh43, left C sup., Petersbuch 2, lingual view; n – BSP 1976 XXII 5543, left mxl, Petersbuch 2, ventral view; o – BSP 1976 XXII 5548, left mnd with m2–3, Petersbuch 2, occlusal view.