Studies in functional and analytical craniology. 8. The Planoarcuate skull.

Abstract

The planoarcuate skull is analysed in comparison with previously described types of crania. The extraordinary plasticity of the planoarcuate skull is pointed out, and explained in analytical and functional terms. The systematic and morphotical position of the mesozoic skull is discussed. The primitive planoarcuate skull, as well as advanced planoarcuate adaptations, are described. Certain similarities between the mammalian planoarcuate skull and the mechanical features of some reptilian skulls are pointed out.