Alternative spelling: Thelodonta
Full reference: O. Jaekel. 1911. Die Wirbeltiere. Eine Übersicht über die Fossilen und Lebenden Formen [The Vertebrates. An Overview of the Fossil and Living Forms] viii-252
Parent taxon: Thelodontomorphi according to R. van der Laan 2019
See also Dineley and Metcalf 1999, Donoghue and Smith 2001, Jaekel 1911, Long 2011, Nelson et al. 2016 and Obruchev 1964
Sister taxa: none
Subtaxa: Archipelepidiformes Boreania Furcacaudiformes Helenolepididae Loganelliiformes Longodidae Oeseliidae Phlebolepidiformes Sandiviiformes Shieliiformes Thelodontiformes Valiukia
Distribution:
• Cretaceous of Czechia (2 collections)
• Devonian of Antarctica (3), Australia (10), Belarus (1), Bolivia (1), Canada (8: Northwest Territories, Nunavut), China (4), France (1), Greenland (1), Iran (3), Latvia (1), Norway (5), the Russian Federation (4), Spain (1), Svalbard and Jan Mayen (1), Ukraine (11), the United Kingdom (9), United States (4: Nevada)
• Silurian to Devonian of the Russian Federation (1)
• Silurian of Canada (17: New Brunswick, Northwest Territories, Nunavut, Quebec), China (1), Estonia (43), Germany (1), Greenland (1), Iran (1), Ireland (1), Latvia (5), Lithuania (3), Norway (2), the Russian Federation (31), Sweden (8), the United Kingdom (134), United States (4: Michigan, Wisconsin)
• Ordovician of Canada (1: Ontario), the Russian Federation (5)
Total: 329 collections including 756 occurrences