the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Mollusca (phylum)
Gastropoda (class)
Architaenioglossa (order)
Viviparidae (family)
[hide inferior taxa]
Campeloma decisum (species)
Campeloma geniculum (species)
Lioplax pilsbyri (species)
Viviparus georgianus (species)