†order Polyspondyli Jordan 1963 (shark)

Chondrichthyes - Polyspondyli

Full reference: D. S. Jordan. 1963. The Genera of Fishes and a Classification of Fishes. Stanford University Press 1-816

Parent taxon: Selachii according to D. S. Jordan 1963

Sister taxa: Acanthodei, Cestraciontes, Ichthyotomi, Pleuropterygii, Selachophidichthyoidei

Subtaxa: Onchidae

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Ecology: nektonic carnivore

Distribution:

• Permian of the Russian Federation (1 collection)

• Devonian of Bolivia (1), Canada (1: Nova Scotia), the United Kingdom (1), United States (2: Ohio, Wyoming)

• Silurian of the Czech Republic (1), Estonia (3), the United Kingdom (2)

Total: 12 collections including 18 occurrences

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