单词	transitional fossil
释义	transitional fossil noun : a fossil that exhibits characteristics of both ancestral and derived forms During the past 30 years, new discoveries and reinvestigations of long-forgotten specimens have coalesced into a flood of transitional fossils. Paleontologists have unearthed walking whales from Pakistan, feathered dinosaurs from China … Courier News (Bridgewater, New Jersey), 27 Feb. 2011 However, although the mammal and bird origins are both documented by numerous transitional fossils, turtles appear abruptly. Michael S. Y. Lee, Science, 24 Sept. 1993 Word History First Known Use 1850, in the meaning defined above
随便看	papery leaf spot papes papeterie papeteries Paphian paphians paphiopedila paphiopedilums Paphlagonia paphlagonian paphlagonians Paphos Papiamento papiamentu papier collé papier-mâché papiers collés papii papilio Papilionaceae papilionaceaes papilionaceous papilionid Papilionidae papilionoid

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