PLATE 5 



\ 



A reconstruction of the possible appearance in life of the Coal Measures 

 branchiosaurian, Rumicrerpeton ftamtin Moodie, a small, primitive 

 salamander, less than 2 inches in length, based on three specimens from 

 the Mazon Creek Shales. The lateral-line organs are represented as dark 

 bands on the tail, the sense organs being, apparently, situated beneath 

 specialized pigmented scales, to which is due the preservation of the lines. 



A restoration, natural size, of the branchiosaurian, Mazonerfifton, based on 

 two specimens. The form of the animal is quite salamander-like. It is 

 shown when about to feed on a specimen of Anuilholflson stimfsoni, which 

 is said to be a brackish-water crustacean. The branch iosaur and 

 crustacean may pnssihlv have inhabited the same body of water. 



