Species: Iron Concretion
County: Eastland
Site: None
Group: Cisco
Formation: Harpersville
Member: None
Period: Pennsylvanian
Epoch: U
Stage: Virgilian
Class: Mineral-Oxide
Order: None
Superfamily: None
Family: None
Genus: Rock
State: Texas
Credit: mmm
ID: 441
MMM ID: None