NO. 1698. A NEW RHYNCHOCEPHALIAN REPTILE— GILMORE. 



39 



* Laodon venustus Marsh. 



* Menacodon varus Marsh. 



* Paurodon valcns Marsh. 

 Priacondon ferox Marsh. 



* Stylacodon gr^acilis Marsh. 



vcdidus Marsh. 

 Thiodon helhis Marsh. 

 ferox Marsh. 

 lepidus Marsh. 

 rohustus Marsh. 

 Trironodon hisulcus Marsh, 

 Reptiles. — Glyptops 07'natus M.arsh^= OJy pf ops pHeatultts (Cope). 

 MacelognatJius vagans Marsh, 

 Pterodactylus montanus^Dermoduetylus 'montanus 



(Marsh). 

 * Opistliias rams Gihnore. 

 f Laosanrus gracilis Marsh. 

 f Coelurus fragilis Marsh. 

 f Goniopholis, sp. undet. 

 Like the mammals, the reptilian remains from " Quarry 9 '' con- 

 sist of scattered and disassociated bones. The ffreat variety and 



Fig. 2. — Right femur of lao.saurcs gracilis marsh, cat. no. 5808 u.s.n.m. nat. size. 

 a, front view ; i, side view ; c, back view ; d, view of proximal end ; e, view of 



DISTAL END ; i. C, INNER TROCHANTER. 



abundance (particularly of the smaller forms) show there was a big- 

 fauna of which at this time we know only a small jDart. 



Among the fossils from this quarry was the small femur from the 

 right side shown in fig, 2, The curved shaft and the positions of 



* Those marked with an asterisk indicate type-specimens in the paleonto- 

 logical collections of the U. S, National Museum. All others, unless otherwise 

 designated, are now preserved in the Yale Miiseum, 



t The type-specimens of these forms are from other quarries. 



