TY  - RPRT
TI  - Fordilla troyensis Barrande: The oldest known pelecypod
AU  - J. Pojeta
AU  - B. Runnegar
AU  - J. Kriz
PY  - 1973
DO  - 10.1126/science.180.4088.866
UR  - https://pubs.usgs.gov/publication/70011078
ID  - 70011078
ER  -