†order Shieliiformes (vertebrate)
Alternative spelling: Shielliiformes
Parent taxon: Thelodonti according to R. van der Laan 2019
See also Long 2011
Sister taxa: Archipelepidiformes, Boreania, Canonia, Furcacaudiformes, Helenolepididae, Loganelliiformes, Longodidae, Oeseliidae, Phlebolepidiformes, Sandiviiformes, Thelodontiformes, Valiukia
Subtaxa: Shieliidae
Ecology:
Distribution:
• Silurian of Canada (1: Nunavut collection), Estonia (1), the Russian Federation (1), the United Kingdom (11)
Total: 14 collections including 17 occurrences