Petromyzontomorphi

PaleoDB taxon number: 217355

Synonym: Cephalaspidomorphi Moy-Thomas and Mile 1971 (taxon 34112)

Parent taxon: Vertebrata according to R. Van Der Laan 2019

Sister taxa: Acrania, Agnatha, Ammopus, Apedolepis, Artenolepis, Auchenaspis, Cephalaspidomorpha, Conodonta, Craniota, Cyclostomi, Eosaurus, Eotetrapoda, Galeaspida, Gnathostomata, Herpetichthyes, Hoplichnus, Hypichthyes, Lepidotosaurus, Mannodon, Myzichthyes, Ostracophori, Pachycardia, Palaeoxyris, Pituriaspida, Protetrapoda, Saurornia, Tidaeus, Toxichnus, Trihamus, Zamponiopteron

Subtaxa: Atelaspidiformes, Birkeniiformes, Cephalaspidida, Cephalaspidiformes, Galeaspidiformes, Gilpichthyidae, Petromyzontiformes, Pipisciidae, Pituriaspidiformes

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Ecology: fast-moving nektonic carnivore