Petrolacosaurus kansensis Lane, a Pennsylvanian reptile from Kansas
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4 Coronoid 14 INTRODUCTION 4 Angular 14 GEOLOGICAL OCCURRENCE 4 Surangular 14 SYSTEMATIC DESCRIPTION Family Petrolacosauridae PEABODY, n. fam Genus Petrolacosaurus LANE, 1945 Petrolacosau rus kansensis LANE, 1945 5
[1] A. Romer. The relationships of the Permian reptile Protosaurus , 1947 .
[2] H. H. Lane. New Mid-Pennsylvanian Reptiles from Kansas , 1945 .
[3] W. H. Twenhofel. Principles of sedimentation , 1939 .
[4] G. ELLIOT SMITH,et al. Studies on the Structure and Development of Vertebrates , 1930, Nature.