Fig. 20From: A new sphenodontian (Diapsida: Lepidosauria) from the Upper Triassic (Norian) of Germany and its implications for the mode of sphenodontian evolutionLeft mandible in A dorsal, B ventral, C medial, and D lateral view. Abbreviations: An, angular; C. proc, coronoid process; D, dentary; Mck. cnl, Meckelian canal; Sur, surangularBack to article page