TY  - RPRT
TI  - Early Permian vertebrates from the Culter Formation of the Placerville area, Colorado, with a section on footprints from the Cutler Formation
AU  - G.E. Lewis
AU  - P.P. Vaughn
AU  - Donald Baird
PY  - 1965
DO  - 10.3133/pp503c
UR  - https://pubs.usgs.gov/publication/pp503C
ID  - pp503C
ER  -