Rock Type: Gray shale
Formation: Allegheny
Interval: 5-Block seam
Age: Middle Pennsylvanian Period, approx. 303 million years.

Neuropteris is a fossil seed fern charactrerized by leaflets that were usually blunt-tipped and usually attached to the base at a single point (as opposed to the entire leaflet). The leaflets are also often heart-shaped at their base.

The leaf itself terminates in a single leaflet.

Paripteris is the name given if it terminates in a pair of leaflets.

Large, totally different-looking Neropteris leaflets, oval-round in shape, are often found attached to the stem. When these distinctive leaflets are found detached, they are given the name Cyclopeteris.

Location: Wayne County, West Virginia; Rollem Fork Surface Mine #2, located about 8.5 miles west of Atenville, West Virginia. Take Route 68 west for 3 miles, turn left on Route 68 / 1 (Francis Creek Road) and drive approximately 6 miles. Just before Frances Creek empties into Kiah Creek a dirt road branches off to the right up a small hill. Site is 1 mile up this dirt road on the right.