†order Astraspidiformes Berg 1940 (jawless fish)

Pteraspidomorpha - Astraspidiformes

Parent taxon: Astraspida according to G. P. Wilson et al. 2016

Sister taxon: Astrapidiformes

Subtaxa: none

Ecology:

Distribution:

• Silurian of Estonia (3 collections), Latvia (1), Lithuania (1), the Russian Federation (2)

• Ordovician of Canada (2: Ontario), United States (3: Colorado, Wyoming)

Total: 12 collections each including a single occurrence

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