Order Petromyzontiformes Berg 1940 (lamprey)
PaleoDB taxon number: 91451
Alternative spelling: Petromyzoniformes
Synonym: Hyperoartii (taxon 217357)
Parent taxon: Petromyzontida according to J. A. Long 2011
Sister taxa: Gilpichthyidae, Pipisciidae, Birkeniiformes, Cephalaspidiformes, Atelaspidiformes, Galeaspidiformes, Pituriaspidiformes, Cephalaspidida
Subtaxa: Euphanerops, Geotriidae, Hardistiellidae, Mayomyzon, Mayomyzontidae, Mesomyzon, Mordaciidae, Petromyzontidae, Priscomyzon
Ecology: fast-moving nektonic carnivore