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Q.
Mammals evolved from therapsid reptiles in Triassic period. The type of skull in these reptiles is
Jharkhand CECEJharkhand CECE 2010
Solution:
The skull of mammals represents a highly modified synapsid pattern. In synapsids, the temporal region of skull develops a single opening bound horizontal along its lower border by a bony connection between jugal and squamosal bones.