First record of Sigmodon minor (Rodentia) in the early Blancan of central Mexico: Asymmetrical dispersal from the Great Plains and paleoecology inferences
Fig 3
Lower jaws and lower teeth of Sigmodon minor from the early Blancan of San Miguel de Allende Basin, Mexico.
a-c) MPGJ 6007, left lower jaw with m1 and m2, occlusal (a), labial (b), and lingual (c) views; d-f) MPGJ 2650, left lower jaw with m1-m3, occlusal (d), labial (e) and lingual (f) views; g-i) MPGJ 2673 left lower jaw with m1-m3, occlusal view (g), labial (h) and lingual (i) views; j-l) MPGJ 2668, right lower jaw with i1, m2 and m3, j) occlusal view, k) labial view, l) lingual view; m-o) MPGJ 2669, right lower jaw with m1-m3, m) occlusal view, n) labial view, o) lingual view; p) MPGJ 1907, right lower m1; q-r) MPGJ 2736, right lower m1, p) occlusal view, q) labial view;. Anatomical abbreviations: alf, alveolar foramen; cap, capsular process of the lower incisor alveolus; cor, coronoid process; con, condyloid process; m1, first lower molar; m2, second lower molar; m3, third lower molar; mf, mental foramen; mpm, medioventral process of mandibular ramus; sn, sigmoid notch. Scale bar is 1 mm.