This type of Sigillaria leaf scar pattern known as Syringodendron is comprised of individual dimples or parichnos. It was found underneath this Sigillaria davreuxi.specimen. These structures represent the locations of veins or vascular bundles serving the leaves.
Rock Type: Gray shale
Interval: 5-Block Seam
Age: Middle Pennsylvanian Period, approx. 303 million years.
Location: Lincoln County, West Virginia; Tiny Creek Mine #1, located about 12 miles south of Charleston, West Virginia in the vicinity of Pine Grove.