Calamites, an immense horsetail from the Carboniferous Period, grew 30 to 40 feet high. Illustration from Louis Figuier's The World Before the Deluge, 1867 American edition. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source |
Bildgröße: | 2397 px × 4800 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |