TY  - RPRT
TI  - Fossils in Ordovician tuffs, northeastern Maine, with a section on Trilobita
AU  - R. B. Neuman
AU  - H. B. Whittington
PY  - 1964
DO  - 10.3133/b1181e
UR  - https://pubs.usgs.gov/publication/b1181E
ID  - b1181E
ER  -