"Studied braincase bone";"‘Europe’ clade";"‘Greece’ clade"
frontal;"distally expanding septomaxillary process in lateral view";"septomaxillary process without distinct distal expansion in lateral view"
;"passage for tractus olfactorius rather subtriangular in anterior view";"passage for tractus olfactorius rather suboval in anterior view"
;"medial frontal process usually creates a depression";"medial frontal process usually does not create a visible depression"
parietal;"dorsal jugal process of the parietal extended laterally in anterior and posterior views";"dorsal jugal process of the parietal extended lateroventrally in anterior and posterior views"
;"parietal crests usually meet closer to the parietal-supraoccipital contact";"parietal crests usually meet further from the parietal-supraoccipital contact to form a distinct narrow crest"
;"contact area between postorbital and jugal bones is located closer to the parietal-frontal contact";"contact area between postorbital and jugal bones is located further from the parietal-frontal contact"
;"cerebral hemispheres of the forebrain are not significantly separated from ventrally located optic tract in the anterior part of the parietal";"cerebral hemispheres of the forebrain are significantly separated from ventrally located optic tract in the anterior part of the parietal"
supraoccipital;"opening for vestibulocochlear nerve usually visible in lateral views";"opening for vestibulocochlear nerve usually is not visible in lateral views"
;"cavum capsularis usually along the entire length of the bone";"cavum capsularis usually ends approximately in the middle of the bone length"
;"less prominent posterior supraoccipital crest";"more prominent posterior supraoccipital crest"
parabasisphenoid;"caudally inclined well developed pterygoid crests extended posterolaterally into distinct basisphenoid processes";"laterally inclined pterygoid crests extended into very short basisphenoid processes"
;"rather short canal for the internal carotid artery (anterior and posterior openings of Vidian canals not far from each other)";"relatively long canal for the internal carotid artery (anterior and posterior openings of Vidian canals relatively far from each other)"
;"anterior orifices of the abducens nerve shifted laterally from the sympathetic nerve foramina";"anterior orifices of the abducens nerve shifted posteroventrally"
basioccipital;"basioccipital processes usually situated posteriorly or at the same level as the tips of basioccipital tubercles";"basioccipital processes usually situated anteriorly or at the same level as the tips of basioccipital tubercles"
;"less conspicuous basioccipital tubercles";"more conspicuous basioccipital tubercles situated ventrolaterally"