TY  - RPRT
TI  - Report upon United States geological surveys west of the one hundredth meridian, Volume IV: Paleontology
AU  - George Montague Wheeler
AU  - Charles A. White
AU  - E.D. Cope
PY  - 1877
DO  - 10.3133/70039253
UR  - https://pubs.usgs.gov/publication/70039253
ID  - 70039253
ER  -