Description: Stigmaria is a form genus used to classify the basal parts and rootlets of various scale trees. The diamond shapes indicate nodes where ribbon-like rootlets grew. Stigmaria are most often found in layers of clay below coal seams; the clay layer is thought to represent the layer of soil below the coal swamps. (Class Lycopsida, Order Lepidodendrales)

Age: Late Carboniferous Period (Pennsylvanian Epoch), 292-320mya.

Found By: Robert Booth.

Location Found: Horsley in Derbyshire, England.

Current Custodian: Robert Booth.

Identified By: jdbmyhoney & Chris Traxon.

References: Plant Fossils of West Virginia