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3. Evidence Bearing on Tooth‐cusp Development;Gidley J. W.;Proc. Wash. Acad. Sci.,1906
4. On the Fossil Mammalia of the Stonesfield Slate;Goodrich E. S.;Quart. J. Micr. Sci.,1894
5. Studies in the Evolution of the Primates;Gregory W. K.;Bull. Am. Mus. Nat. Hist.,1916