Helcionelloida - Helcionellida - Trenellidae
Synonyms: Isitella Missarzhevsky 1989, Isitiella Missarzhevsky 1989
Full reference: L. G. Voronova, N. A. Drozdova, B. A. Zhegallo, A. Yu Zhuravlev, A. Yu Rozanov, T. A. Sayutina, and G. T. Ushatinskaya. 1987. Fossils from the Lower Cambrian of the MacKenzie Mountains (Canada). Trudy Paleontologicheskogo Instituta 224:1-88
Parent taxon: Trenellidae according to P. Yu. Parkhaev 2004
See also Bengtson 1992, Khomentovsky and Karlova 1993, Missarzhevsky 1989, Parkhaev 2001, Parkhaev 2002 and Sepkoski 2002
Sister taxa: Mackinnonia, Trenella, Tubatoconus, Udzhella
Subtaxa: Isitella plicata Isitella recta Parailsanella acris Parailsanella inpocera Parailsanella lata Parailsanella murenica Parailsanella sayutinae
Ecology: slow-moving low-level epifaunal grazer
Distribution:
• Cambrian of Australia (6 collections), Canada (1: Northwest Territories), China (1), the Russian Federation (20)
Total: 28 collections including 34 occurrences
Specimen images are retrieved through the ePANDDA API.
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