FIGURE 1. A) Occlusal surface of Ellobius right lower m1: triangle (T); buccal re-entrant angle (BRA); lingual re-entrant angle (LRA); anterior cap (AC); posterior lobe (PL); B) Lingual view of left lower m1.
FIGURE 2. Ellobius lower m1s (all figured as right ones) from the extant reference collections and Kaldar Cave. A) Ellobius fuscocapillus: A.1-Kaldar Cave, 2014/4/SL5II/E6/125-130, right lower m1, number 157. A.2-Kaldar Cave, 2014/4/SL5/E5/109-111, right lower m1, number 520. A.3-Kaldar Cave, 2014/5/SL7II/E7/170-180, right lower m1, number 104. A.4- Kaldar Cave, 2014/5/SL7II/F6/135-145, right lower m1, number 547.A.5-modern, NHM86101513, Afghanistan, right lower m1. A.6-modern, FM111846, Iran, right lower m1. A.7-modern, NHM86101512, Afghanistan, right lower m1; B) Ellobius lutescens: B.1-Kaldar Cave, 2014/5/SL7II/F6/130-140, right lower m1, number 319. B.2- Kaldar Cave, 2014/4/SL5II/F7/115-118, right lower m1, number 90. B.3- Kaldar Cave, 2014/4/SL5II/F7/115-118, right lower m1, number 91. B.4- Kaldar Cave, 2014/5/SL7II/E7/145-150, right lower m1, number 436. B.5-modern, NMH916416, Turkey, right lower m1. B.6-modern, NMH916414, Turkey, right lower m1. B.7-modern, NMH916412, Turkey, right lower m1; C) Ellobius talpinus: C.1-modern, NHM3421126, Russia, right lower m1. C.2-modern, FM103163, Afghanistan, right lower m1. C.3-modern, AMNH59797, Mongolia, right lower m1. Scale 1 mm.
FIGURE 3. A) Kaldar Cave location. B) Entrance from the south of Kaldar Cave.
FIGURE 4. Ellobius right lower m1. A) 14 landmarks: Landmarks on the outermost turning point of buccal (2, 4, 6) and lingual (8, 10, 12, 14) salient angles, and on the innermost turning point of buccal (3, 5) and lingual (9, 11, 13) re-entrant angle. B) 60 semi-landmarks on the anterior cap.
FIGURE 5. Principal component analysis on the normalized landmarks and sliding semilandmarks and shape configuration at the extreme ends of the two first PCs.
FIGURE 6. A) First two PCs from the Principal component analysis performed on the size and shape including the reference collection and Kaldar Cave material. B) Boxplot of the total length of Ellobius from the extant reference collections and Kaldar Cave.
FIGURE 7. Morphological differences between Ellobius fuscocapillus (left) and Ellobius lutescens (right). Arrows depict the displacements between corresponding landmarks in the reference (dots) and Ellobius lutescens as target specimens.
