Fossil Tree-like Plant
Sigillaria stellata
Plants (ferns, conifers, flowering plants)
Paleobiology
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Fossil Seed Fern
Alethopteris serlii
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Seed Fern
Trigonocarpus
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Seed Fern
Callipteris conferta
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Fossil Fern
Supaia sturdevantii
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Seed Fern
Gigantopteris nicotianaefolia
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Horsetails
Sphenophyllum gilmorei
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Seed Fern
Alethopteris helenae