First record of Sigmodon minor (Rodentia) in the early Blancan of central Mexico: Asymmetrical dispersal from the Great Plains and paleoecology inferences
Fig 2
Maxillaries and upper teeth of Sigmodon minor from the early Blancan of San Miguel de Allende Basin, Mexico.
a-c) MPGJ 2670, left maxillary with M1 and M2, occlusal (a), lingual (b) and labial (c) views; d-f) MPGJ 2692 right maxillary with M1 and M2; occlusal (d), lingual (e) and labial (f) views; g-i) MPGJ 2674 left maxillary with M1 and M2, occlusal (g), lingual (h), and labial (i) views; j, k) MPGJ 2667 left maxillary with M2 and M3, occlusal (j) and lingual (k) views; l, m) MPGJ 2653, right maxillary with M1-M3, occlusal (l) and lingual (m); n, o) MPGJ 2672, right maxillary with M1 and M2, occlusal (n) and labial (o) views; p, q) MPGJ 2675, left maxillary with M1 and M2, occlusal (p) and lingual (q) views; r) MPGJ 2689, right maxillary with M1; s) MPGJ-1908, left maxillary with M1, occlusal view; t, u) MPGJ 2716, left upper M1, occlusal (t) and labial (u) views. Anatomical abbreviations: apm, alveolar process of maxillary; ar, accessory root; M1, first upper molar; M2, second upper molar; M3 third upper molar; if, incisive foramen; zpm, zygomatic plate of maxillary. Scale bar is 1 mm.