974 W. K. GREGORY REPORT OF COMMITTEE ON NOMENCLATURE 



the cranial elements or, in many cases, as to which term is to be preferred 

 among several synonyms; and although substantial progress has been 

 made toward this end, it is recognized that much further investigation 

 and discovery is required in order to settle the difficult questions of ho- 

 mology between the various elements in amphibians, reptiles, and mam- 

 mals, on which the final nomenclature must largely rest. 



List of approved Names 



Tlie names approved and used by all members of the committee cover 

 the majority of the cranial elements and are as follows : 



Angular 



Articular 



Basioccipital 



Basisphenold 



Coronoid 



Dentary 



Ectopterygoid 



Epipterygoid 



Ethmoid 



Exoccipital 



Frontal 



Intercoronoid 



Interfrontal 



Intertemporal (see also sphenotic) 



Jugal 



Lacrimal (not lacrimal of Gaupp 



and von Huene) 

 Maxilla 

 Nasal 

 Palatine 



Parietal 



Postfrontal 



Parasphenoid 



Postorbital 



Prearticular 



Precoronoid 



Prefrontal 



Premaxilla ) 



Prevomar 



Prootie 



Pterygoid 



Quadrate 



Quadrato jugal 



Septomaxilla 



Stapes 



Squamosal 



Supratemporal 



Surangular ( Supra-angnlar ) 



Supraoccipital 



Tabular 



List of Names as to v^hich there is Divergence of Opinion 



Names as to which there is some divergence in the committee, either of 

 usage or of opinion as to homology, are as follows : 



"Alisphenoid" of reptiles. 



Postoptic Cope (Williston). 



Laterosphenoid (von Huene). 



Otosphenoid (Broom). 

 Dermosupraoceipital. 



Prior term, used by Williston, Case, Gregory. 



Postparietal Broom, Watson, Moodie. 



Interpai-ietal (Miien opposite pair are fused) Broom. 



