• Thumbnail for Artiopoda
    †Cindarella †Phytophilaspis †Xandarella †Sinoburius †Zhugeia Vicissicaudata †Xenopoda (possibly paraphyletic) †Sidneyia †Emeraldella †Etania †Kodymirus †Eozetetes...
    15 KB (882 words) - 15:19, 12 March 2024
  • Thumbnail for Sidneyia
    1923, Sidneyia, was placed, along with Emeraldella, as part of the group "Xenopoda". Today, both Sidneyia and Emeraldella are placed as part of the clade...
    11 KB (1,097 words) - 14:52, 29 November 2023
  • Thumbnail for Cheloniellida
    century, Cheloniellida was mostly found to form a clade with Aglaspidida and Xenopoda (e.g. Sidneyia and Emeraldella). The clade was formally named Vicissicaudata...
    21 KB (1,946 words) - 19:17, 12 March 2024