the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Gnathostomata (superclass)
Sarcopterygii (class)
Tetrapoda (no rank)
Amphibia (class)
Anura (order)
Pipidae (family)
Xenopus (genus)
[hide inferior taxa]
Xenopus borealis (species)
Xenopus laevis (species)
Xenopus laevis x gilli (species)
Xenopus muelleri (species)
Xenopus sp. (species)
Xenopus tropicalis (species)