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1.- Former diversity of Ephedra (Gnetales); evidence from Early Cretaceous seeds from Portugal and North America
Oxford University Press; London-Oxford; GBR; United Kingdom, 2006
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2.- On the evolutionary history of Ephedra; Cretaceous fossils and extant molecules
National Academy of Sciences; Washington, DC; USA; United States, 2004
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3.- TRIFURCATIA FLABELLATA N. GEN. N. SP., A PUTATIVE MONOCOTYLEDON ANGIOSPERM FROM THE LOWER CRETACEOUS CRATO FORMATION (BRAZIL)
WILEY; WEINHEIM; DEU; FEDERAL REPUBLIC OF GERMANY, 2002
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