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Antarctica
Paleobotany
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Permian
Phylogenetics and taxonomy
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Silicified trunk
1
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
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[SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE]
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[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics
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[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics
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[SDV.EE.ECO]Life Sciences [q-bio]/Ecology
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environment/Ecosystems
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