Bark of Sigillaria laevigata, a large tree-like plant from the Carboniferous Period. Sigillaria fossils are often found in coal mines. Illustration from Louis Figuier's The World Before the Deluge, 1867 American edition.
Crédit: Album / Science Source
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Taille de l'image: 2922 × 3166 px | 26.5 MB
Taille d'impression: 24.7 × 26.8 cm | 1150.4 × 1246.5 in (300 dpi)