奥陶纪 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "奥陶纪" in Chinese language version.

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archive.org

books.google.com

  • Charles Lapworth (1879) "On the Tripartite Classification of the Lower Palaeozoic Rocks," Geological Magazine, new series, 6 : 1-15. From pp. 13-14: "North Wales itself — at all events the whole of the great Bala district where Sedgwick first worked out the physical succession among the rocks of the intermediate or so-called Upper Cambrian or Lower Silurian system; and in all probability much of the Shelve and the Caradoc area, whence Murchison first published its distinctive fossils — lay within the territory of the Ordovices; … Here, then, have we the hint for the appropriate title for the central system of the Lower Palaeozoics. It should be called the Ordovician System, after this old British tribe."

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nih.gov

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semanticscholar.org

stratigraphy.org

ordovician.stratigraphy.org

  • The Ordovician Period. Subcommission on Ordovician Stratigraphy. International Commission on Stratigraphy. 2020 [7 June 2021]. (原始内容存档于2022-05-11). 

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