1. Systematic catalogue of vertebrata of the eocene of New Mexico: collected in 1874 Author(s): Geographical Surveys West of the 100th Meridian (U.S.) Publication: Washington : G.P.O., 1875 Subject(s): FossilsVertebrates -- classificationGeological PhenomenaNew Mexico
2. Remarks on classification of vertebrata Author(s): Wilder, Burt G. (Burt Green), 1841-1925 author Publication: [Massachusetts?] : [publisher not identified], [1887?] Subject(s): Vertebrates -- classification
