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Geolocation
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Author - title
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Year
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| details | Middle Pennsylvanian | Late Pennsylvanian | Illinois | Kosanke,R.M. Pennsylvanian spores of Illinois and their use in correlation. | 1950 |
| details | Late Pottsville | West Virginia | Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky | 1947 | |
| original | Late Pottsville | Kentucky | Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky | 1947 | |
| details | Pennsylvanian | Ohio | Kosanke,R.M. A microfossil Profile of certain Pennsylvanian Coals of Ohio | 1943 |