Full reference: J. Nõlvak. 2007. A new chitinozoan species from the Upper Ordovician of the East Baltic. Estonian Journal of Earth Sciences 56(1):63-64
Parent taxon: Protista according to Y. Liang et al. 2020
Sister taxa: Actinopoda, Ambonosphaera, Chrysophyta, Dapcodinium, Dichadogonyaulax, Mendicodinium, Palaeopascichnus, Paragonyaulacysta, Prasinophyta
Subtaxa: Prosamatifera
Distribution:
• Triassic of Israel (1 collection)
• Permian of Israel (3)
• Devonian of Australia (11), Canada (1: Nunavut), Czechia (5)
• Silurian of Canada (1: Nunavut), Czechia (21), Estonia (52), Latvia (1), the Russian Federation (2), Ukraine (4)
• Dobrotivian of France (1)
• Ordovician of Argentina (1), Canada (6: Quebec), China (1), Estonia (6), Morocco (1), Portugal (1), the Russian Federation (3), South Africa (1), Spain (1), Sweden (2), the United Kingdom (1), United States (1: New York)
Total: 128 collections including 197 occurrences