†infraclass Halicyna Gall and Grauvogel 1967 (arthropod)
Parent taxon: Multicrustacea according to F. R. Schram and S. Koenemann 2021
See also Schram et al. 1997
Sister taxa: Hexanauplia, Malacostraca
Subtaxa: Cyclida
Ecology:
Distribution:
• Cretaceous of the Netherlands (1 collection)
• Triassic of Austria (1), China (1), France (9), Germany (1), the Netherlands (1), Poland (2)
• Permian of Germany (1), Italy (4)
• Carboniferous of Ireland (1), the United Kingdom (2), United States (2: Illinois)
Total: 26 collections including 36 occurrences