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60 Twelvetrees, "W.- H. On a New Theriodont Reptile. Q. J. G. S., 1880. 



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58 Owen, Richard. Evidences of Theriodonts in Permian Deposits Elsewhere than in Africa. Q. J. G. S., 

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69 Trautschold, H. Die Reste Permischen Reptilien des Paleontologischen Kabinets der Universitat Kasan. 

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60 Seeley, H. G. Researches, etc. VIII. Further Evidences of the Skeleton in Deuterosaurus and Rho- 

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61 Fritsch, Anton. Die Fauna der Gaskohle, und der Kalksteine der Permformation Bohmens. Bd. I, 

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62 Fritsch, Anton. Fauna der Gaskohle, und Supplement. Notiz. Bd. Ill, p. 121, Text Fig. 309. 



63 Fritsch, Anton. Ueber Neue Wirbelthiere aus der Permformation Bohmens, nebst einer Uebersicht der 

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64 Marsh, O. C. Principal Characters of American Dinosaurs. Am. Jnl. Sc, Vol. XXVI, August, 1883. 



65 Marsh, O. C. American Dinosaurs. Sixteenth Annual Report U. S. Geol. Survey, 1896. 



66 Case, E. C. The Significance of Certain Changes in the Temporal Region of the Primitive Reptilia. Am. 

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67 Seeley, H. G. Researches, etc. Part IX, Section 5. On the Skeleton in New Cynodontia from the Karroo 

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68 Siebenrock, F. Zur Osteologie des Hatteria-Kopfes. Sitzb. der K. Akad. Wiss. Wien. Bd. CII, Abth. I, 

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69 Cope, E. D. On the Structure of the Brain and Auditory Apparatus of a Theromorphous Reptile of the 

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