6. 



Type of Leptophracttts lineolatus Cope, from the Coal Measures of Linton, Ohio. Por- 

 tions of maxilla and mandible of left side with teeth. XI. Original in American 

 Museum i>f Natural History. 



Type of Proterpeton s^urleyi Moodie, from the Coal Measures of Illinois, near Danville. 

 Cervical of an otherwise unknown vertebrate. Neural spine to the right. 

 Original in Walker Museum, University of Chicago X 2. 



Amphibian phalanx from the Coal Measures near Breeze, Illinois, of an unknown 

 species. The probable form of the element is represented. X 3. 



Large rib of a stereospondylous stegocephalan otherwise unknown. The rib may 

 represent a species of Macrerpeton or may even belong with Macrerpeton deani 

 .Moodie, but exact identification will have to wait for future discoveries. From 

 the Coal .Measures of Linton, Ohio. Original in U. S. National Museum. X 1. 



Type of Cope's species ///(///(ZHy^j woro'ajr referred by him to the cranium, on account 

 of the sculpturing of the elements. We now know the specimen to be portions of 

 the interclavicle and clavicles of Diceratosaurus punctolineatus, as Cope suggested 

 they might be. Original in American Museum of Natural History. X 1. 



Skull of Baphetes. plankeps Owen from the Coal Measures of Nova Scotia. 0.45. 

 Original in the British Museum, South Kensington. After Owen. 



