Permo-Carboniferous Ammonoids of the Glass Mountains 22] 



Plate V. 



Fig. 1-13 . . Paralegoceras incertum nov. sp.— Zone of Uddenites (Wolf camp 

 formation).— Wolf Camp, Glass Mountains. 

 Pig. 1, side view; fig. 2, front; fig. 3, venter; natural size. 

 Fig. 4, front; fig. 5, venter, of the same specimen; twice natural 



size. 

 Fig. 6, external suture of the same specimen ; natural size. 

 Fig. 7, front ; fig. 8, venter ; fig. 9, side view, of a small specimen ; 



natural size. 

 Fig. 10, side view; fig. 11, front; fig. 12, venter, of the same speci- 

 men ; twice natural size. 

 Fig. 13, external suture of the same specimen; natural size. 

 Fig. lA-lS. .Prothalassoceras Welleri nov. gen. nov. sp. — Zone of ProtJialasso- 

 ceras (Hess formation). — Two and a half miles north 20 degrees 

 east from the old oil derrick on Wedin's ranch at the foot of the 

 first range of hills, Glass Mountains. 

 Fig. 14, venter; fig. 15, side view; fig. 16, front; natural size. 

 Fig. 17, external suture; fig. 18, last siphonal lobe, of the same 

 specimen; natural size. 

 Fig. 19-32. .Paraceltites niulticostatus nov. sp. — Zone of Waagenoceras (Word 

 formation). — Two and a half miles north 70 degrees east from 

 second tank above the headquarters ranch house of the Hess 

 ranch. Glass Mountains. 

 Fig. 19, side view ; fig. 20, cross-section ; natural size. 

 Fig. 21, cross-section; fig. 22, side view, of the same specimen; 



twice natural size. 

 Fig. 23, side view; natural size. 



Fig. 24, side view, of the same specimen; twice natural size. 

 Fig. 25, cross-section ; fig. 26, side view ; fig. 27, venter ; natural 



size. 

 Fig. 28, venter; fig. 29, side view; fig. 30, cross-section, of the 



same specimen; twice natural size. 

 Fig. 32, side view; natural size. 



Fig. 31, side view of the same specimen; twice natural size. 

 Fig. SS-38. .Paraceltites aff. elegans Girty. — Zone of Waagenoceras (Word 

 formation). — Two and a half miles north 70 degrees east from 

 second tank above the headquarters ranch house of the Hess 

 ranch, Glass Mountains. 

 Fig. 33, venter; fig. 34, side view; fig. 35, cross-section; natural 

 size. 



