Delicate fossil leaves of Sphenopteris,a typical pteridosperm (seed fern). Sphenopteris is believed to be a shrublike plant that lived in marshy conditions during the Carboniferous and Permian Periods. This specimen is 60 mm long | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Biophoto Associates |
Taille de l’image : | 5126 px × 3410 px |
Model Release : | Non requis |
Restrictions : |
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