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Cet album fait partie des albums

↪ Devonian formations in the United States by state
↪ Devonian geology of Virginia
↪ Devonian rocks in Virginia
↪ Geologic formations in Virginia by geochronology
↪ Paleozoic formations in Virginia

Cet album photos contient les sous-albums suivants :

↪ Hamilton Group (geology)
↪ Oriskany Group
↪ Bedford Formation
↪ Brallier Formation
↪ Foreknobs Formation
↪ Hampshire Formation
↪ Harrell Shale
↪ Huntersville Chert
↪ Java Formation
↪ Keyser Formation