FOSSIL VERTEBRATES 
AMPHIBIA 515 
Dolichosoma and Ophiderpeton, Carboniferous, Ireland. 
Molgophis? and Phlegethonia?, Carboniferous, Ohio. 
Labyrinthodonta vera. 
Rachitomt. 
Archegosaurus, Rothliegende, Germany. 
Chelydosaurus, Rothliegende, Bohemia. 
Actinodon and Euchirosaurus, Rothliegende, France. 
Trimerorachis and Eryops, Permian, Texas. 
Embolerimt. 
Cricotus, Permian, Texas. 
Diplovertebron, Permian, Gaskohle, Bohemia. 
Labyrinthodont.. 
Trematosaurus, Buntersandstein, Germany. 
Metoposaurus, Keupfer, Germany. 
Capitosaurus, Buntersandstein, Germany. 
Mastodonsaurus, Keupfer, Germany. 
Micropholis and Bothriceps, Permian, South Africa. 
Eupelor, Pariostetgus, and Dictyocephalus, Triassic, Penn- 
sylvania, and North Carolina. 
Besides the remains of fossil forms the rocks of the Carbonif- 
erous and Triassic times have yielded a large number of tracks, 
made when the animal walked across some mud flat. These 
tracks have received the name of J/chnites. Such tracks in the 
Carboniferous rocks are known from Kansas and Nova Scotia. 
Most of the tracks however occur in the Triassic rocks; the 
red sandstone of the Connecticut River Valley has yielded a 
large number. Prominent among them is the form described as 
Lrontozoum. These are enormous tracks, the middle digit 
having a length of 12.5 inches and the whole foot 14 to 18 inches. 
The whole animal must have been twelve to fourteen feet long. 
Anisopus from the same locality had the hind foot nearly 
twice as large as the front foot. 
Anomepus had five digits on the front foot and only three 
on the hind foot. (This form may very possibly have been 
reptilian). 
Chierotherium or Chierosaurus from the Buntersandstein of 
Europe was about half the size of Brontozouwm, The hind foot 
