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Asset Overview
Fossil specimen of the lycopod (club moss) *Stigmaria* sp. from the Carboniferous of Morgan County, Tennessee (PRI 50355). *Stigmaria* is a rhizomorph, or root-like anchoring structure for ancient lycophyte trees. Note the helically arranged, circular rootlet scars. Specimen is on display at the [Museum of the Earth](http://www.priweb.org), Ithaca, New York. Length of specimen is approximately 26.5 cm. Model by Emily Hauf.
