†subfamily Mesonomiinae Ulrich and Cooper 1936 (lamp shell)
Rhynchonellata - Pentamerida - Huenellidae
Parent taxon: Huenellidae according to A. Williams et al. 2002
Sister taxa: Huenellinae, Rectotrophiinae
Subtaxa: Glyptotrophia Mesonomia Mogoktella Radkeina
Type: Mesonomia
Ecology: stationary epifaunal suspension feeder
Distribution:
• Tremadoc of United States (1: Vermont collection)
• Ibexian of Canada (1: Alberta)
• Cambrian of Australia (1), Kazakhstan (1)
Total: 4 collections each including a single occurrence