[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
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   [metazoans] Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
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     Phylum Arthropoda Siebold, 1848 - arthropods
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       Class †Trilobita Walch, 1771 - trilobites
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         Genus †Polliaxis Palmer, 1968
        Count: -