Helcionelloida - Helcionellida - Trenellidae
Full reference: S. Bengtson, S. Conway Morris, B. J. Cooper, P. A. Jell, and B. N. Runnegar. 1990. Early Cambrian fossils from South Australia. Association of Australasian Palaeontologists 9:1-364
Parent taxon: Trenellidae according to P. J. Wagner 2023
See also Bengtson 1992, Bengtson et al. 1990, Landing and Bartowski 1996, Parkhaev 2002, Parkhaev 2005, Parkhaev 2017, Runnegar 1990, Sepkoski 2002, Skovsted 2004 and Wotte 2006
Sister taxa: Parailsanella, Trenella, Tubatoconus, Udzhella
Subtaxa: Mackinnonia anabarica Mackinnonia corrugata Mackinnonia puppis
Ecology: slow-moving low-level epifaunal grazer
Distribution:
• Cambrian of Australia (14 collections), Mexico (2), Norway (1), the Russian Federation (3), United States (1: Massachusetts)
Total: 21 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.