†order Isoxyida Simonetta and Delle Cave 1974
Alternative spelling: Isoxyda
Parent taxon: Deuteropoda according to H. Zeng et al. 2020
See also Lerosey-Aubril et al. 2020
Sister taxa: Chelicerata, Fuxianhuiida, Mandibulata, Megacheira
Subtaxa: Isoxyidae
Distribution:
• Solvan of Canada (2: British Columbia collections)
• Delamaran of Canada (7: British Columbia)
• Caerfai of Canada (1: Northwest Territories)
• Cambrian of Australia (4), Canada (2: British Columbia), China (48), Greenland (2), the Russian Federation (1), Turkey (1), United States (1: Utah)
Total: 69 collections including 107 occurrences