Helcionelloida - Helcionellida - Trenellidae
Alternative combination: Leptostega corrugata
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
Belongs to Mackinnonia according to P. J. Wagner 2023
See also Bengtson et al. 1990, Parkhaev 2001, Parkhaev 2005 and Topper et al. 2009
Sister taxon: Mackinnonia anabarica
Type specimen: SAMP 29006, a shell. Its type locality is L1849, L1748, L1763C - Curramulka Quarry, which is in an Atdabanian carbonate limestone in the Parara Formation of Australia.
Ecology: slow-moving low-level epifaunal grazer
Distribution:
• Cambrian of Australia (14 collections), Mexico (2), United States (1: Massachusetts)
Total: 17 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.