Lepidodendron stigmaria bark section. Plainville, MA (315+ myo)

DISPLAYING CIRCULAR LEAF SCAR DIMPLES, 315 million year old [mid-Pennsylvanian] Lepidodendron scale tree bark cast from Plainville, MA. Lepidodendron, a giant club moss, grew up to 100 feet tall. Its stumps sometimes became nests or traps for primitive reptiles and amphibians. For this reason Lepidodendron stigmaria is often a sign that the area is prime for tracks.