NO. I THE OLDEST KNOWN REPTILE — PEABODY 1 3 



HUENE, F. VON. 



1956. Palaontologie und Phylogenie der niederen Tetrapoden. xii + 716 pp., 

 690 figs. Jena. 

 Moodie, Roy L. 



1909. Carboniferous air-breathing vertebrates of the United States National 



Museum. Proc. U. S. Nat. Mus., vol. 37, pp. 11-28, 7 pis. 

 1 916. The Coal Measures Amphibia of North America. Carnegie Inst. 

 Washington Publ. 238, x + 222 pp., 43 figs., 26 pis. 

 Peabody, F. E. 



1951. The origin of the astragalus of reptiles. Evolution, vol. 5, pp. 339S44, 



2 figs., 1 pi. 



1952. Petrolacosaurus kansensis Lane, a Pennsylvanian reptile from Kansas. 



Univ. Kansas Paleont. Contr. : Vertebrata, art. 1, pp. 1-41, 11 figs., 



3 pis. 



1954. Pennsylvanian reptiles of Kansas. Bull. Geol. Soc. Amer., vol. 65, p. 



1293 (abstract). 

 Piveteau, Jean (Ed.). 



1955. Traite de paleontologie. Vol. V, Amphibiens, reptiles, oiseaux. 11 13 



pp. Paris. 

 Romer, A. S. 



1930. The Pennsylvanian tetrapods of Linton, Ohio. Bull. Amer. Mus. 



Nat. Hist., vol. 59, pp. 77-147. 26 figs. 

 1947. Review of the Labyrinthodontia. Bull. Mus. Comp. Zool., Harvard 



Coll., vol. 99, pp. 1-368, 48 figs. 

 1950. The nature and relationships of the Paleozoic microsaurs. Amer. 



Journ. Sci., vol. 248, pp. 628-654, 4 figs. 



1956. Osteology of the reptiles, xxi + 772 pp., 248 figs. Univ. Chicago 



Press. 

 Vaughn, Peter P. 



1955. The Permian reptile Araeoscelis restudied. Bull. Mus. Comp. Zool., 

 Harvard Coll., vol. 113, pp. 305-467, 15 figs., 2 pis. 

 Williston, S. W. 



1908. The oldest known reptile — Isodectes punctulatus Cope. Journ. Geol., 

 vol. 16, pp. 395-400, 1 fig., 1 pi. 



1 910. Cacops, Desmospondyhis; new genera of Permian vertebrates. Bull. 



Geol. Soc. Amer., vol. 21, pp. 249-284, 12 pis. 



