240 KANSAS UNIVERSITY SCIENCE BULLETIN. 



burg, Pa., by Case, and the discovery by the writer of the 

 cricotoid form in the Mazon Creek fauna, as well as the pres- 

 ence of Carboniferous Cricotidse in Illinois and Kansas, all 

 point to an origin of the temnospondylous group at an earlier 

 date in North America than in any other region of the globe. 

 The embolomerous forms are by far the older. 



The species of fossil Amphibia from the Carboniferous, 

 Permian and Triassic are so little known that it is difficult to 

 give a definite list of the species of the Temnospondylia. The 

 list given below is believed to be approximately accurate. It 

 does not differ in essential outlines from that given by Zittel 

 in 1887. The species are distributed in the various groups to 

 which, at the present time,, they seem to belong : 



CLASS— AMPHIBIA, Linn6, 1758. 



Order — Temnospondylia, Zittel, 1887. 

 Suborder — Rhachitomi, Cope, 1885. 



Family — Eryopid^ Cope, 1882. 



Eryops megacephalus Cope, 1877. Permian of Texas, 

 erythrolithicus Cope, 1878. Permian of Texas, 

 ferricolus Cope, 1878. Permian of Texas, 

 reticulatus Cope, 1881. Permian of Texas. 

 ? platypus Cope, 1877. Carboniferous of Ohio, 

 latus Case, 1905. Permian of Texas, 

 willistoni Moodie, 1911. Permian of Oklahoma. 

 Trematops milleri Williston, 1909. Permian of Texas. 

 Acheloma cumminsi Cope, 1882. Permian of Texas. 

 Ichthycanthus ohiensis Cope, 1877. Carboniferous of Ohio. 

 Gondwanosaurus bijoriensis Lydekker. Bijori, India. 

 Zatrachys apicalis Cope, 1881. Permian of Texas. 

 " conchigerus Cope, 1896. Permian of Texas. 



" crucifer Case, 1905. Permian of Texas. 



" micropthalmus Cope, 1896. Permian of Texas. 



" serratus-Cope, 1878. Permian of Texas. 



Actinodon frossardi Gaudry, 1880. Permian of France. 

 " latirostris Jordan. Permian of France. 



* (?) Anisodexis enchodus Cope, 1897. Carboniferous of Ohio. 



* " imbrecarius Cope, 1882, Permian of Texas. 

 *Rhytidosteus capensis Owen, 1884. Karoo Beds, South Africa. 

 (?) *Euchirosaurus rochei Gaudry. Permian of France. 



Family — Trimerorhachid^ Cope, 1882. 



Trimerorhachis bilobatus Cope, 1883. Permian of Texas. 



" conangulus Cope, 1896. Permian of Texas. 



" insignis Cope, 1878. Permian of Texas. 



" mesops Cope, 1896. Permian of Texas. 



" leptorhynchus Case, 1902. Permian of Oklahoma. 



Cricotlllus brachydens Case. Permian of Oklahoma. 

 Archegosaurus austricus Makowsky, 1876. 



" decheni Goldfuss, 1847. Permian of Germany. 



" latifrons Gein. & Deich. Permian of Saxony. 



" ornatus Woodward, 1905. Permian of India. 



