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Mackinnonia Bengtson et al. 1990 (mollusk)

Helcionelloida - Helcionellida - Trenellidae

PaleoDB taxon number: 7947

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 2017

Sister taxa: Parailsanella, Trenella, Tubatoconus, Udzhella

Subtaxa: Mackinnonia anabarica, Mackinnonia corrugata, Mackinnonia puppis, Mackinnonia rostratum, Mackinnonia taconica

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Ecology: slow-moving low-level epifaunal grazer