Parent taxon: Antipleuroidei according to J. G. Carter et al. 2011
See also Bouchet et al. 2010
Sister taxon: Antipleuroidea
Subtaxa: Dualinidae Praelucinidae Spanilidae Stolidotidae
Type: Dualina
Ecology: facultatively mobile epifaunal suspension feeder
Distribution:
• Carboniferous of United States (1: Alaska collection)
• Devonian of Austria (1), Czechia (2), France (1), Germany (6), Italy (1), Morocco (1), Poland (1), the Russian Federation (1), United States (2: Montana, New York)
• Silurian to Devonian of Poland (1)
• Silurian of Algeria (2), Argentina (3), Austria (7), China (1), Czechia (36), France (3), Germany (1), Italy (8), Morocco (4), Poland (5), the Russian Federation (1), Spain (2), Sweden (1), the United Kingdom (4)
Total: 96 collections including 201 occurrences