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pteridosperm color palettes

#676661 #2A2629 #989895 #E9E9E9 #83827C

related tags: 2A2629 81817E 83827C E9E9E9 alethopteris clair fern ferns fossil fossils graphite pennsylvania pennsylvanian plant plants pteridosperm pteridosperms pyrophyllite seed shale st 292729 666563 676661 989895 989896