Alethopteris seed fern fossil. Close-up of a slab of coal shale containing a fossilised specimen of an Alethopteris seed fern. It dates from around 300 million years ago,during the Westphalian stage of the Carboniferous. It is from the Lens coalfield in the Pas-de-Calais region of France. The entire specimen (see C018/9379) measures 24 by 30 centimetres. It is part of the Barrois collection at the Museum of Geology in Lille,France | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Mermet, Gilles |
Bildgröße: | 2615 px × 3350 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |