sigillaria bark fossil specimen

ancient antique arborescent art artwork avant bark black botany carboniferous davreuxii drawing engraved engraving etching extinct flora fossil fossilized fragment illustration impression isoetopsida lepidodendron lycopodiophyta man monde old paleobotany paleontology permian picture plant plantae prehistoric primitive sigillaria sigillariaceae sketch specimen spore sporebearing stem tree treelike tressellata trunk vector vintage white world