Vol. 269, Issue 3, 1970October 01, 1970 EDT
Review of Late Middle Ordovician Graptolites in Eastern New York and Pennsylvania
Review of Late Middle Ordovician Graptolites in Eastern New York and Pennsylvania
W. B. N. Berry,
Berry, W. B. N. (1970). Review of late middle Ordovician graptolites in eastern New York and Pennsylvania. American Journal of Science, 269(3), 304–313. https://doi.org/10.2475/ajs.269.3.304