Fossilised giant horsetail (Calamites sp.) trunk. The horsetails are a prehistoric family of vascular plants that reproduce by spores rather than seeds. This specimen is from the Late Carboniferous period (320-290 million years ago) and was found in the UK | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Natural History Museum, London |
Taille de l’image : | 4698 px × 3720 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |