Proterogyrinus (Ukrainian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Proterogyrinus" in Ukrainian language version.

refsWebsite

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6^th place

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1biodiversitylibrary.org

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archive.org

Haines, Tim; Paul Chambers (2006). The Complete Guide to Prehistoric Life. Canada: Firefly Books. с. 38.

biodiversitylibrary.org

Romer, A.S. (30 квітня 1970). A new anthracosaurian labyrinthodont, Proterogyrinus scheelei, from the Lower Carboniferous. Kirtlandia. 10: 1—16.

doi.org

Holmes, R. (2 листопада 1984). The Carboniferous Amphibian Proterogyrinus scheelei Romer, and the Early Evolution of Tetrapods. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 306 (1130): 431—524. doi:10.1098/rstb.1984.0103.