My genuine specimens will be delivered with a “Certificate of authenticity, age and origin” and scientific papers allowing plant identification! Very Rare , unusually complete, interesting extinct fossil sphenopterid fern: Sphenopteris kevretensis SOCKMANS & WILLIERE on big matrix. All detailed data will be provided with the specimen. Upper Carboniferous, Middle Pennsylvanian, Namurian B. 29,0 x […]