STRATIGRAPHIC AND GEOGRAPHIC DISTRIBUTION. 



I I 



species. It may have been made by either a branchiosaurian or a microsaurian, but 

 more probably the latter, since we do not know of any of the former animals from 

 the Cannclton beds, or in fact from any of the Coal Measures beds excepting the 

 Mazon Creek shales. The specimen is No. 2872 of the American Museum. 



FIG. 2. Distribution of Coal Measures Amphibia in North America. 



1. Linton, Ohio, near Yellow Creek P. O., Jefferson County, Ohio, on the banks of Yellow Creek, near the Ohio River, 16 



miles north of Steubenville. 



2. Mazon Creek shales, Gruncly County, Illinois, near Morris. 



3. "Clepsydrops shales," Salt Fork Creek, Vermilion County, Illinois, near Oakwood, on Tate farm, 8 miles west of Danville, 



Illinois. 



4. Danville, Illinois, coal where the type of Proterpeton gurleyi Moodie was found. 



5. Breeze, Illinois, where Dr. J. A. Udden, in 1907, found a fragment of an amphibian phalange on the dump of the Cooper- 



ative Coal Company. 



6. Pitcaim, Pennsylvania, 15 miles east of Pittsburgh. 



7. Cannelton, Pennsylvania, Beaver County, Cannelton slates, Kittanning formation, 45 miles northwest of Pittsburgh. 



8. Fairfield, Iowa, where Dr. J. A. Udden found remains attributed by Dr. Eastman to Pleuroptyx clavatus Cope. 



9. Louisville, Pottawatomie County, Kansas, where Dr. S. W.Williston discovered remains of Maslodonsaurus in the Coal 



Measures. 



10. Washington County, Kansas, source of type of Eobapheles kansensis Moodie, from the Coal Measures, 

 n. Osage City, Osage County, Kansas, amphibian footprints from the Coal Measures. 



12. Winfield, Kansas, source of Cricotus material. 



13. Lander, Wyoming, in Wind River Carboniferous. 



14. Pictou, Pictou County, Nova Scotia, 84 miles northeast of Halifax. Source of Bapheles plantceps Owen. 



'5- Jggi ns (Joggins Mines), Cumberland County, Nova Scotia, 4 miles from River Hebert. Source of Hylerpeton and Den- 



drerpeton faunas. 

 16. South Joggins, Nova Scotia, source of the Eosaurus acadianus Marsh. 



(g) Dr. J. A. Udden, in 1907, discovered a fragment of a phalanx of some 

 amphibian (plate 22, fig. 3) on the dump of the Cooperative Coal Company, a mile- 

 east of Breeze, Illinois. It was obtained from below the Shoal Creek limestone 

 and somewhere above the (Illinois) Coal No. 6, according to Dr. Udden's notes. The 

 maximum width of the phalanx is 10 mm. and it probably had a length of 16 mm. 



