TY  - RPRT
TI  - Reappraisal of three calcareous nannofossil species: Coccolithus crassus, Toweius magnicrassus, and Toweius callosus
AU  - Wuchang Wei
AU  - L. Liu
AU  - David Bukry
PY  - 1993
DO  - 10.1144/jm.12.1.91
UR  - https://pubs.usgs.gov/publication/70208655
ID  - 70208655
ER  -