the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Petromyzontiformes (order)
Petromyzontidae (family)
Lampetra (genus)
Lampetra tridentata (species)
Entosphenus tridentatus (alias)
Pacific lamprey (primary common name)
[hide inferior taxa]