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THE SKULL OF REPTILES
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Fig. 46. Sauropterygian skulls: A, Peloneustes. After Linder. One ninth natural size. B, Plesiosaurus. After Andrews. One sixth natural size. C, Muraenosaurus. After Andrews. One sixth natural size.
Fig. 47. Sauropterygian skulls: A, Nothosaurus, from above. One fourth natural size. B, Simosaurus, from below. After Jaekel. One fourth natural size. C, Thaumatosaurus, from below. After Fraas. One fourth natural size.
Very great also, are the modifications of the palate. The anterior nares are situated either between the prevomers and the maxillae,
