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International Commission on Zoological Nomenclature

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Case 3695: Dimetrodon Cope, 1878 (Synapsida, Sphenacodontidae): proposed conservation by reversal of precedence with Bathygnathus Leidy, 1853

K. S. Brink, “Case 3695: Dimetrodon Cope, 1878 (Synapsida, Sphenacodontidae): proposed conservation by reversal of precedence with Bathygnathus Leidy, 1853”, Bulletin of Zoological Nomenclature, vol. 72, no. 4, pp. , 2015.

The purpose of this application, under Article 23.9.3 of the Code, is to conserve the widely used generic name Dimetrodon Cope, 1878 (Sphenacodontoidea, Sphenacodontidae). The name Dimetrodon is threatened by its senior subjective synonym Bathygnathus Leidy, 1853. The name Dimetrodon has....

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Opinion 2425: Diplodocus Marsh, 1878 (Dinosauria, Sauropoda): Diplodocus longus Marsh, 1878 maintained as the type species

ICZN, “Opinion 2425: Diplodocus Marsh, 1878 (Dinosauria, Sauropoda): Diplodocus longus Marsh, 1878 maintained as the type species”, Bulletin of Zoological Nomenclature, vol. 75, pp. , 2018.

The International Commission on Zoological Nomenclature has declined to use its plenary power to replace the type species of the sauropod dinosaur genus Diplodocus Marsh, 1878 with D. carnegii Hatcher, 1901.

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Case 3700: Diplodocus Marsh, 1878 (Dinosauria, Sauropoda): proposed designation of D. carnegii Hatcher, 1901 as the type species

Emanuel Tschopp, Octávio Mateus, “Case 3700: Diplodocus Marsh, 1878 (Dinosauria, Sauropoda): proposed designation of D. carnegii Hatcher, 1901 as the type species”, Bulletin of Zoological Nomenclature, vol. 73, no. 1, pp. , 2016.

The purpose of this application, under Articles 78.1 and 81.1 of the Code, is to replace Diplodocus longus Marsh, 1878 as the type species of the sauropod dinosaur genus Diplodocus by the much better represented D. carnegii Hatcher, 1901, due to the undiagnosable state....

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