Fig. 2 in Differentiation of skull morphology and cranial kinesis in common toads

Fig. 2 Variation in the degree of ossification of the parasphenoid and prootic in common toads. The arrows indicate the adjacent cranial bones for which character states ('connected' or 'unconnected') were scored as follows: prootic to exoccipital (P-E), prootic to squamosal (P-Sq), sphenethmoid to parasphenoid (Sp-Ps), sphenethmoid to palatine (Sp-Pa) and exoccipital to parasphenoid (E-Ps)