121. ——. 1875. Synopsis of the Vertebrata whose remains have been preserved in the formations of North Carolina. Appendix "b" by Kerr, W. C. Rept. Geol. Surv. N. C,, Raleigh, 29-52, pls. v-viii.
122. ——. 1875. The extinct Batrachia of Ohio. Proc. Acad. Nat. Sci. Phila., 16.
123. Cope, E.D. 1875. Synopsis of the extinct Batrachia from the Coal Measures. Geol. Surv. Ohio, II, pt. II, 351-410, pls. xxvi-xlv.
124. ——. 1876. On some extinct reptiles and Batrachia from the Judith River and Fox Hills Beds of Montana. Proc. Acad. Nat. Sci. Phila., 357; Pal. Bull. 23.
125. ——. 1876. Description of some vertebrate remains from the Fort Union Beds of Montana. Proc. Acad. Nat. Sci. Phila., 260. (Ceratodus hieroglyphus, an amphibian clasper?.)
126. ——. 1877. On the fossil remains of Reptilia and fishes from Illinois. Proc. Acad. Nat. Sci. Phila., 405.
127. ——. 1877. On the Vertebrata of the Bone Bed of eastern Illinois. Proc. Amer. Phil. Soc., XVII, 53-64.
128. ——. 1877. Report on the geology of the region of the Judith River, Montana, and on vertebrate fossils obtained on or near the Missouri River. Bull. U. S. Geol. and Geog. Surv. of Territories, in, art. XIX, Batrachia, 573, 576.
129. ——. 1877. Descriptions of Vertebrata from the Permian and Triassic Formations. Proc. Amer. Phil. Soc., XVII, 182-193.