TY  - RPRT
TI  - Foraminifers from the upper part of the Lewis Shale (Upper Cretaceous) near Durango, Colorado
AU  - M.A. Carey
PY  - 1990
DO  - 10.3133/ofr90220
UR  - https://pubs.usgs.gov/publication/ofr90220
ID  - ofr90220
ER  -