Petrified fern

Petrified fern is a rare and highly prized fossil that forms when prehistoric tree ferns are preserved through the process of permineralization. Unlike standard petrified wood from ancient pine or oak trees, petrified ferns feature intricate, lace-like internal patterns created by the plant’s unique root jacket and vascular bundles.Because ancient tree ferns did not have solid wood trunks, their structures reveal stunning horseshoe-shaped or speckled patterns when sliced and polished.