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Permian

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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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Case 3826: Propappus Michaelsen, 1905 (Annelida, Clitellata): proposed precedence over Propappus Seeley, 1888 (Vertebrata, Reptilia)

Christer Erséus, Patrick Martin, Svante Martinsson, Tarmo Timm., “Case 3826: Propappus Michaelsen, 1905 (Annelida, Clitellata): proposed precedence over Propappus Seeley, 1888 (Vertebrata, Reptilia)”, Bulletin of Zoological Nomenclature, vol. 78, pp. , 2021.

The purpose of this application, under Article 23.9.3 of the Code, is to conserve the well-used names Propappus Michaelsen, 1905 and Propappidae Coates, 1986 (Annelida) by suppression of the senior homonym Propappus Seeley, 1888 (Reptilia), a junior subjective synonym of Pareiasaurus Owen, 1876.

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