Permo-Carboniferous Ammonoids of the Glass Mountains 21 



o 



Plate I 



Fig. 1-8. .Daraelites texanus nov. sp. — Zone of JJddenites (Wolf camp forma- 

 tion.) — Wolf Camp, Glass Mountains. 



Fig. 1, side view ; fig. 2, front ; fig. 3, venter. Natural size. 



Fig. 4, side view ; fig. 5, front ; fig. 6, venter, of the same specimen ; 

 twice natural size. 



Fig. 7, external suture of the same specimen ; twice natural size. 



Fig. 8, internal suture of the inner whorl of the same specimen ; four 

 times natural size. 



Fig. 9-23. .JJddenites Schucherti nov. gen. nov. sp. — Zone of Uddemtes (Wolf- 

 camp formation) . — Wolf Camp, Glass Mountains. 



Fig. 9, side view; fig. 10, front; fig. 11, venter; natural size. 



Fig. 15, side view; fig. 16, front; fig. 17, venter, of the same speci- 

 men ; twice natural size. 



Fig. 12, side view ; fig. 13, front ; fig. 14, venter ; natural size. 



Fig. 18, side view; fig. 19, front; fig. 20, venter, of the same speci- 

 men; twice natural size. 



Fig. 21, external suture, not quite mature, taken from specimen il- 

 lustrated in Fig. 9-11, 15-17 ; twice natural size. 



Fig. 22, external suture, mature, taken from specimen illustrated 

 in fig. 12-14, 18-20 ; twice natural size. 



Fig. 23, internal suture of the next smaller whorl of specimen illus- 

 trated in fig. 9-11, 15-17, 21 ; four times natural size. 



Fig. 24-40. .Vddenites minor nov. gen. nov. sp. — Zone of JJddenites (Wolf camp 

 formation). — Wolf Camp, Glass Mountains. 



Fig. 24, mature external suture of specimen illustrated in fig. 27-29 

 and fig. 38-40; twice natural size. 



Fig. 25, mature suture of specimen illustrated in fig. 30-33, 35-37 ; 

 twice natural size. 



Fig. 26, immature external suture, Pronorites stage of inner whorl 

 of specimen illustrated in fig. 32 and 34 ; four times natural size. 

 ' Fig. 27, front ; fig. 28, venter ; fig. 29, side view ; natural size. 



Fig. 38, venter ; fig. 39, front ; fig. 40, side view, of the same speci- 

 men ; twice natural size. 



Fig. 30, side view; fig. 31, venter; fig. 33, front; natural size. 



Fig. 35, side view ; fig. 36, front ; fig. 37, venter, of the same speci- 

 men ; twice natural size. 



Fig. 32, side view, showing faint radial ribs on lower righthand 

 side ; natural size. 



Fig, 34, side view of the same specimen ; twice natural sixe. 



