Most of the edge of each temporal notch is formed by the curved supratemporal bone rather than the squamosal, similar to baphetids but unlike Balanerpeton. Each supratemporal contacts a postparietal at the rear edge of the skull, a plesiomorphic feature in contrast to "anthracosaurs" which allow the parietal and tabular bones to contact instead.
Most of the edge of each temporal notch is formed by the curved supratemporal bone rather than the squamosal, similar to baphetids but unlike Balanerpeton. Each supratemporal contacts a postparietal at the rear edge of the skull, a primitive characteristic in contrast to "anthracosaurs" which allow the parietal and tabular bones to contact instead.