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11 |
Material Type: Artigo
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Palynological and Iridium Anomalies at Cretaceous-Tertiary Boundary, South-Central SaskatchewanNichols, D. J. ; Jarzen, D. M. ; Orth, C. J. ; Oliver, P. Q.Science (American Association for the Advancement of Science), 1986-02, Vol.231 (4739), p.714-717 [Periódico revisado por pares]United States: The American Association for the Advancement of ScienceTexto completo disponível |
12 |
Material Type: Ata de Congresso
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Morphology, development, and systematic relevance of pollen and sporesHesse, M ; Ehrendorfer, FriedrichNew York: Springer-Verlag 1990Texto completo disponível |