It is known that there are two superkingdoms of life on earth: Prokarya and Eukarya. Under Eukarya, there are two kingdoms with known recorded long-lived species. Some of these are under the kingdoms: Animalia and Plantae. For our discussion, one of these long-lived species is in the Kingdom Animalia, Subkingdom
Metazoa, Phylum
Chordata, Subphylum
Vertebrata, Superclass
Neopterygii, Class
Teleostei, Subclass
Euteleostei, Superorder
Acanthopterygii, Order
Cypriniformes, Suborder
Cyprinoidei, Family
Cyprinidae, Subfamily
Cyprininae, Genus
Cyprinus, Species Cyprinus Carpio. Common name is Koi and the oldest is documented in the link at
http://www.arborman.com/koioldest.htm