350 



PALEOZOIC TIME — CARBONIFEROUS AGE. 



have burrowed into the interior of the Sigillaria trunk in which it was found. 

 (Dawson.) 



(d.) Insects. — Fig. 602 A, Blattina venusta Lesquereux, from the Coal measures 

 at Frog Bayou, Arkansas. The specimen is one of the wings ; and it very closely 

 resembles the corresponding wing of a modern Cockroach (genus Blatta). Ke- 

 mains of Neuropterous Insects have been found in Illinois. (See p. 751.) 



5.Vertebrates. — (a.) Fishes. — Fig. 603 A, Eurylepis tuberculatus Newberry; 

 and fig. 603 B, Coelacanthus elegans Newberry, — both Ganoids from the Coalmea- 



Fig. 603. 



Ganoids. — Fig. 603 A, Eurylepis tuberculatus; §03 B, Coelacanthus elegans. 



sures at Linton, Ohio. The latter is remarkable for not having the tail hetero- 

 cercal, although strictly vertebrated. The genus Eurylepis of Newberry is a 

 group of small but highly-ornamented fishes, allied to Palseoniscus, but distin- 

 guished by the high side scales. Other Ganoids occur of the genera Megalich- 

 thys, Palseonisfiiis, Amblypterus, Pygopterus, Rhizodus, and Coelacanthus, in the Coal 

 measures of the United States and Nova Scotia. 



Among Selachians the following European genera have been recognized in 

 the Coal-measure limestones of Pennsylvania, Ohio, Indiana, Illinois, etc., — the 

 species being generally distinct from those of the Old World : — 1. Cestracionts : 

 genera Ctenopty chins, Petalodus, Helodus, Cochliodus, Pcecilodus, PI eur acanthus, 

 Ctenacanthus, and Oracanthus. 2. Hybodonts : genera Diplodus and Cladodus. 

 (Newberry.) 



(b.) Reptiles. — Amphibians. — Fig. 604 A, Raniceps Lyellii Wyman, found by 

 Dr. Newberry along with fossil fishes at Linton, Ohio. According to Wyman, 

 it has many of the characteristics of the Batrachians (frogs), or tail-less Amphi- 

 bians (whence the name, signifying Frog-headed), but appears to be interme- 

 diate between that group and the Salamander tribe (tailed Amphibians). No 

 scales have been observed : if possessing them, like the species of Nova Scotia, 

 it would rank among the Labyrinthodonts. 



Baphetes planiceps Owen, is the name of an Amphibian from Pictou, Nova 

 Scotia. The specimen is a portion of the skull, seven inches broad, — enough to 

 show the great size of the animal. According to Owen, it was probably a scale- 

 covered and voracious animal of the Labyrinthodont tribe. 



Dendrerpeton Acadt'anum is a smaller and narrower reptile from Nova Scotia, 

 and one of the number found in the stump of a Sigillaria at the Joggins, as 



