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THE SKULL OF REPTILES
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The Skull of the Placodontia
(Fig. 49)
Fig. 49. Placodont skulls: A–D, Placodus. After Broili. One fourth natural size.
E, Placochelys. After Jaekel. One half natural size.
The skull of the Placodontia is almost unique among reptiles for the extraordinary development of large, flat, crushing teeth upon the
