Vol. s3-40, Issue 236, 1890August 01, 1890 EDT
Some Lower Silurian Graptolites From Northern Maine
Some Lower Silurian Graptolites From Northern Maine
W. W. Dodge,
Dodge, W. W. (1890). Some Lower Silurian graptolites from northern Maine. American Journal of Science, s3-40(236), 153–155. https://doi.org/10.2475/ajs.s3-40.236.153