Figure 3: Fossil mammalians of the Honggou fauna.

(a) Mioechinus? sp., right lower fourth premolar (p4). (b) Pleisodipus sp., left lower third molar (m3). (c–k) Monosaulax tungurensis (c: right lower fourth premolar (p4); (d,e) left lower first or second molar (m1/m2); (f,g) left lower first or second molar (m1/m2); (h: left lower third molar (m3); i–k: left lower jaw with first molar). (l,m) Zygolophodon sp., anterior part of a cheek tooth. (n,o) Rhinocerotidae indet (broken left lower canine). (p–r) Turcocerus sp., left upper third molar (M3). In the figure, a and b are in the same scale (scale bar, 2 mm); c–h are in the same scale (scale bar, 1 mm); i–r are in the same scale (scale bar, 1 cm).