†family Helicoconchidae Zatoń and Olempska 2017
Tentaculita - Microconchida - Helicoconchidae
Full reference: M. Zatoń and E. Olempska. 2017. A family-level classification of the Order Microconchida (Class Tentaculita) and the description of two new microconchid genera. Historical Biology 29(7):885-894
Parent taxon: Microconchida according to M. Zatoń and E. Olempska 2017
Sister taxa: Microconchidae, Palaeoconchidae, Punctaconchidae
Subtaxa: Helicoconchus
Ecology: stationary semi-infaunal suspension feeder
Distribution:
• Permian of United States (2: Texas collections)
Total: 2 collections each including a single occurrence