the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Petromyzontiformes (order)
Petromyzontidae (family)
Lampetra (genus)
[hide inferior taxa]
Lampetra appendix (species)
Lampetra fluviatilis (species)
Lampetra japonica (species)
Lampetra planeri (species)
Lampetra reissneri (species)
Lampetra richardsoni (species)
Lampetra tridentata (species)
Lampetra tridentatus (species)