†family Trenellidae Parkhaev 2001 (mollusk)
Helcionelloida - Helcionellida - Trenellidae
Full reference: P. Y.u. Parkhaev. 2001. Molluscs and siphonoconchs. The Cambrian biostratigraphy of the Stansbury Basin, South Australia 282:133-210
Parent taxon: Yochelcionelloidea according to P. Bouchet et al. 2005
See also Parkhaev 2002 and Parkhaev 2004
Sister taxa: Rugaeconidae, Yochelcionellidae
Subtaxa: Mackinnonia Parailsanella Trenella Tubatoconus Udzhella
Type: Trenella
Ecology: slow-moving low-level epifaunal grazer
Distribution:
• Cambrian of Australia (24 collections), Canada (1: Northwest Territories), China (2), Mexico (2), the Russian Federation (22), United States (1: Massachusetts)
Total: 52 collections including 63 occurrences