Asterophyllites equisetiformis

This specimen illustrates a type of foilage of the Calamite tree. Whorls of small leaflets are arranged concentrically around a thin stem.


Rock Type: Sandy shale
Formation: Kanawha
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 out the ridge about 7 miles. Turn right at "Y" intersection.