English: Skull of S. ptychodus, AMNH 143267. A) left lateral view; B) occlusal view of left cheek tooth row. Scale bar = 2 cm.
Date
Source
Sun B., Zhang X., Liu Y. & Bernor R.L. (2018) - Sivalhippus ptychodus and Sivalhippus platyodus (Perissodactyla, Mammalia) from the Late Miocene of China. Riv. It. Paleontol. Strat., 124(1): 1-22.
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