Annularia is the scientific name for the leaves of the horsetail genus Calamites. Annularia consists of delicate rosettes of leaflets,which can be oval or lance-shaped,depending on the species. This genus occurs in Carboniferous strata in North America,Europe and Asia | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Biophoto Associates |
Taille de l’image : | 5104 px × 3424 px |
Model Release : | Non requis |
Restrictions : |
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