Archaeopteryx (English Wikipedia)

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biodiversitylibrary.org (Global: 387^th place; English: 373^rd place)

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books.google.com (Global: 3^rd place; English: 3^rd place)

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chicagotribune.com (Global: 95^th place; English: 70^th place)

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doi.org (Global: 2^nd place; English: 2^nd place)

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handle.net (Global: 102^nd place; English: 76^th place)

hdl.handle.net

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harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

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iczn.org (Global: low place; English: low place)

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in2013dollars.com (Global: low place; English: low place)

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ivpp.ac.cn (Global: low place; English: low place)

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jstor.org (Global: 26^th place; English: 20^th place)

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nature.com (Global: 234^th place; English: 397^th place)

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newscientist.com (Global: 774^th place; English: 716^th place)

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nih.gov (Global: 4^th place; English: 4^th place)

pubmed.ncbi.nlm.nih.gov

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