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GeoRef Subject
Appalachian Basin
clastic rocks
Devonian
Erie County New York
Eifelian
Invertebrata
Middle Devonian
Paleozoic
United States
paleoclimatology
microfossils
New York
Ludlowville Formation
Finger Lakes
Hamilton Group
sedimentation
shale
Protista
sea-level changes
Foraminifera
North America
paleogeography
sedimentary rocks
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