72 



U.S. NATIONAL MUSEUM BULLETIN 284 



PALATINE 

 LACHRYMAL 



NASAL 



2nd CIRCUMORBITAL 

 3rd CIRCUMORBITAL 



4th CIRCUMORBITAL 



LATERAL 

 ETHMOID 



DERMOSPHENOTIC 



SPHENOTIC 



LATERAL 



EXTRASCAPULAR 



POSTTEMPORAL 



PARIETAL 

 PTEROTtC 



EPIOTIC 

 EXOCCIPITAL 



SUPRAOCCIPITAL BASIOCCIPITAL 



Figure 3. — Entomacrodus nigricans, dorsal view of cranium showing some of the attached 



bones in place. 



