prefrontal frontal pterosphenoid supraoccipital 



metapterygoid hyomondibular 



ethmoid 



frontal 



prootic pterotic porosphenoid 

 operculum 



ethmoid 



parasphenoid 



prefrontal 



sphenotic 



C2) " pterotic 



posttemporal 



supraoccipital "s^' \l 



epiotic 



pterotic / ^ 



posttemporal 



basioccipital 



' exoccipital 



exoccipital 



epiotic 



112 



