Vol. 245, Issue 9, 1947September 01, 1947 EDT
New Gastropods and Trilobites Critical in the Correlation of Lower Ordovician Rocks
New Gastropods and Trilobites Critical in the Correlation of Lower Ordovician Rocks
Josiah Bridge, Preston Ercelle Cloud,
Bridge, J., & Cloud, P. E. (1947). New gastropods and trilobites critical in the correlation of Lower Ordovician rocks. American Journal of Science, 245(9), 545–559. https://doi.org/10.2475/ajs.245.9.545