†order Leanchoiliida Størmer 1944 (arthropod)
Parent taxon: Megacheira according to R. Lerosey-Aubril et al. 2020
See also Edgecombe et al. 2011 and Siveter et al. 2014
Sister taxa: Fortiforcipida, Kootenichelidae, Yohoiida
Subtaxa: Enaliktidae Leanchoiliidae
Ecology:
Distribution:
• Silurian of the United Kingdom (1 collection)
• Ordovician of United States (1: New York)
• Cambrian of Australia (1), Canada (19: Brithish Columbia, British Columbia), China (39), United States (6: Utah)
Total: 67 collections including 80 occurrences