†family Turcuthecidae Missarzhevskiy 1989
Orthothecimorpha - Circothecida - Turcuthecidae
Parent taxon: Circothecida according to P. D. Kruse 2002
Sister taxa: Arathecus, Asijatheca, Costatheca, Extentitheca, Kunyangotheca, Ladatheca, Leibotheca, Mojczatheca, Spinulitheca, Uniformitheca
Subtaxa: Loculitheca Xystritheca
Ecology: stationary epifaunal suspension feeder
Distribution:
• Cambrian of Australia (17 collections), China (2), the Russian Federation (9)
Total: 28 collections each including a single occurrence