Sigillaria davreuxi


This leaf scar pattern exists on a thin 1/16th inch thick lamination of coal on the exterior of this Sigillaria specimen.

Close-up available

Underneath these leaf scars are small dimple structures known as parichnos, and Sigillaria specimens found bearing these structures are assigned to the form genera Syringodendron.

Rock Type: Gray shale
Formation: Kanawha
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.