PLATE VIII 
Av, antorbital vacuity 
Pal, palatine 
Bo, basioccipital 
Pao, paroccipital (opisthotic 
Bs, basisphenoid 
Par, parasphenoid 
En, external nares 
Pf, parietal foramen 
Eo, exoccipital 
Pm, premaxilla 
Et, ectopterygoid (transverse) 
Po postfrontal 
Ds, dermosupraoccipital (postparietal) 
Poo, postorbital 
Fm, foramen magnum 
Ppf, postpalatine foramen 
Fr, frontal 
Prf, prefrontal 
In, internal nares 
Pt, pterygoid 
Ipv, interpterygoid vacuity 
Qj, quadratojugal 
It, intertemporal 
Qu, quadrate 
Itv, intertemporal vacuity 
So, supraoccipital 
Ju, jugal 
Sq, squamosal 
La, lacrimal 
St, supratemporal 
Ltv, lateral temporal fenestra 
Stv, supratemporal vacuity 
M, maxilla 
Ta, tabular 
Na, nasal 
Vo, vomer 
Or, orbit 
an opening 
P, parietal 
' — an unpaired bone 
