Theriodontia — Tapinocephalidoi, 57 



muzzle is more elongated and the nares (nostrils) are terminal 

 and are overliung by massive nasal bones. The border of the 

 jaws has a cutting edge, but the surface of the palate and 



Fig. 76. — Lateral views of the skulls of {A), Diciinodnn Incerticeps (Owen), and (B) 

 Oudenodon Baini (Owen) ; from the Karoo series, South Africa. Figures much redu( 



mandible carry one or more longitudinal rows of columnar and 

 cylindrical teeth. The palate of Endothiodon is remarkably 

 mammalian in type. 



SuB-ORDEK 3. — Theriodontia. 



Family Tapinocephalidj^.. — This family includes remains of 

 two large forms from the Karoo beds. South Africn, namely, 

 Tapinocepliahis and Titanosuchus. Their dentition indicates a 

 carnivorous type of reptiles. An imperfect skull, several entire 

 limb-bones, and vertebrge are preserved in the Collection. 



Family Galksaurid^. — -Nearlv the whole of the typical 

 Theriodontia are included in this family. Thoyform a remark- 

 able group of carnivorous reptiles, first described and thus named 

 by Sir Richard Owen* in reference to the form and order of 

 arrangement of the teeth bearing a greater resemblance to the 

 dentition of the Mammalia than any other group of the class 



* " Catalogue of the Foss. Eept. of Soutli Africa," 4to, Lond. 1876. 



Theriodon- 

 tia. 



Table-case, 

 No. 18. 

 "Wall-case, 

 No. 7. 

 Tapinoce- 

 phalus. 



Table-case, 

 No. 17. 



Galesaurus. 



