Animalia > Chordata > Sphenacodontidae SphenacodontidaeSynonyms: Dimetrodon kempae; Eosyodon hudsoni; Palaeohatteriidae; Pantelosauridae
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Animalia > Chordata > Sphenacodontidae SphenacodontidaeSynonyms: Dimetrodon kempae; Eosyodon hudsoni; Palaeohatteriidae; Pantelosauridae
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