the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Gnathostomata (superclass)
Actinopterygii (class)
Neopterygii (no rank)
Teleostei (no rank)
Euteleostei (no rank)
Cyprinodontiformes (order)
Aplocheilidae (family)
Rivulinae (subfamily)
[hide inferior taxa]
Kryptolebias marmoratus (species)
Rivulus marmoratus (species)