†order Birkeniiformes (vertebrate)

Petromyzontida - Birkeniiformes

Parent taxon: Cephalaspidomorphi according to J. J., Jr. Sepkoski 2002

Sister taxa: Gilpichthyidae, Pipisciidae, Ateleaspis, Cephalaspidida, Galeaspidiformes, Cephalaspidiformes, Atelaspidiformes, Pituriaspidiformes

Subtaxa: Birkenia Lasanius

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Ecology: fast-moving nektonic carnivore

Distribution:

• Silurian of the United Kingdom (3 collections)

Total: 3 collections including 5 occurrences

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