When Lepidodendron branch scars are arranged in a spiral they are given the name Halonia.
Rock Type: Sandstone
Interval: Coalburg seam
Age: Middle Pennsylvanian Period, approx. 307 million years.
Location: Nicholas County, West Virginia; Ramp
Run Surface Mine #1, located about 12 miles north of Summersville,
West Virginia. Turn west off route 19 north of Summersville onto
Spruce Run Road. Follow it about 7 miles. Turn right at the Terry
Eagle Coal Company entrance sign.