bn:01314448n
Noun Named Entity
Categories: Carboniferous System of North America, Carboniferous geology of Pennsylvania, United States geologic formation stubs
EN
Virgilian series  Virgilian
EN
The Virgilian series is the youngest part of the Pennsylvanian epoch in the North American geologic classification series. Wikipedia
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EN
The Virgilian series is the youngest part of the Pennsylvanian epoch in the North American geologic classification series. Wikipedia
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