Phylum Euarthropoda Lankester, 1904 see [unranked] Euarthropoda Order †Bradoriida Raymond, 1935 - bradoriids Family †Beyrichonidae Ulrich & Bassler, 1931 Genus †Beyrichona Matthew, 1885 [†Beyrichona avanga McMenamin, 2020, orth. inval.] see Beyrichona avannga Peel, 2017