Subfamily Petromyzontinae (lamprey)
Petromyzontida - Petromyzontiformes - Petromyzontidae
Parent taxon: Petromyzontidae according to J. S. Nelson et al. 2016
Sister taxa: Agnathomyzon, Bathymyzon, Haploglossa, Lampetrinae, Lampreda, Oceanomyzon, Okkelbergia, Pricus, Reighardina, Scolecosoma
Subtaxa: Ichthyomyzon Petromyzon
Ecology:
Distribution: there are no occurrences of Petromyzontinae in the database