†superclass Thelodontida

Thelodontida

Parent taxon: Craniata according to J. A. Long 2011

See also Obruchev 1964 and Sansom and Elliott 2002

Sister taxa: Anaspida, Coluber arcuatus, Conodontomorpha, Myllokunmingiiformes, Myxinomorphi, Osteostracomorphii, Petromyzontomorphi, Pteraspidomorphi

Subtaxa: Coelolepidae Palaeodontidae Turiniidae

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Ecology:

Distribution:

• Devonian of Bolivia (1 collection), the Russian Federation (2), Ukraine (1), the United Kingdom (3)

• Silurian of Canada (1: New Brunswick), China (1), Estonia (15), Lithuania (2), Norway (1), the Russian Federation (4), Sweden (6), the United Kingdom (85)

• Ordovician of Canada (1: Ontario)

Total: 123 collections including 224 occurrences

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