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Keywords from Image Description:
Bassin Houiller Du Gard. Information Art of Life biodiversitylibrary org photograph en figures of Bassin Houiller Du Gard Plate XXII Gologie et palontologie du bassin houiller du Gard by Grand'Eury Franois Cyrille Biodiversity Heritage Library biodiversitylibrary org Pseudosigillaria dimorpha sp Nevropteris Guardinis Spirangium