†order Mollisoniida Lerosey-Aubril et al. (arthropod)
Parent taxon: Chelicerata according to R. Lerosey-Aubril et al. 2020
Sister taxa: Euchelicerata, Eurypterida, Gumatagichnus, Habeliida, Limulus nathorsti, Offacolidae, Sanctacaris
Subtaxa: Mollisoniidae Urokodia
Ecology:
Distribution:
• Ordovician of Australia (1 collection), Greenland (1), Morocco (1), the United Kingdom (1)
• Cambrian of Canada (7: Brithish Columbia, British Columbia), China (9), United States (3: Utah)
Total: 23 collections including 30 occurrences