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anoxia(10)
collaborative research(10)
fossil record(10)
permian-triassic transition(10)
permo-triassic(10)
permo-triassic mass extinction(10)
tectonic setting(10)
ammonoidea(9)
conodont(9)
environmental change(9)
continental stratigraphy(8)
critical interval(8)
earth history(8)
end(8)
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general audience(8)
marine realm(8)
palynology(8)
pedogenic trend(8)
permian-triassic(8)
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