†unranked clade Hallucishaniids Smith and Caron 2015 (velvet worm)
Full reference: M. R. Smith and J.-B. Caron. 2015. Hallucigenia’s head and the pharyngeal armature of early ecdysozoans. Nature 523(7558):75-78
Parent taxon: Onychophora according to M. R. Smith and J.-B. Caron 2015
Sister taxa: Antennacanthopodia, Cardiodictyon, Diania, Euonychophora, Helenodora, Microdictyon, Paucipodia, Udeonychophora, Xenusion
Subtaxa: Carbotubulus Hallucigenia Hallucigeniidae Luolishaniidae Orstenotubulus Rushtonites
Distribution:
• Carboniferous of United States (1: Illinois collection)
• Silurian of the United Kingdom (1)
• Delamaran of Canada (11: British Columbia)
• Cambrian of Canada (1: Nova Scotia), China (8), Sweden (1), the United Kingdom (2)
Total: 25 collections including 28 occurrences