商品の詳細

A stunning and scientifically significant 11.5-inch Stigmaria fossil, representing the preserved root structure of ancient lycopod trees (Sigillaria or Lepidodendron) from the Carboniferous Period — the age of coal forests. 🪨 Highlights: • Deep, dark coloration from iron- and coal-rich matrix • Rare preserved root branch attached — highly sought-after • Detailed surface texture showing rootlet scars and growth pattern 🕰️ Age: ~310 million years (Pennsylvanian Epoch, Carboniferous) 🔬 Significance: These fossils formed in vast swampy lowlands that eventually became modern-day coal beds. Stigmaria fossils with intact branching structures are extremely rare and are considered scientifically valuable and highly collectible specimens. ✅ Authentic | Natural | No Repairs Perfect for advanced collectors, educators or natural history museums.