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Natura - nature ..actualia - actual entities ....Mundus - physical world ......naturalia - natural bodies ........Biota (Clade) ..........neomura ([unranked]) ............Eukaryota (Domain) - eukaryotes ..............discaria ([unranked]) ................dorsates ([unranked]) ..................podiates ([unranked]) ....................Amorphea (Clade) ......................Obazoa (Clade) ........................Opisthokonta (Clade) - animal-fungal clade ..........................Holozoa (Superkingdom) ............................filozoa ([unranked]) ..............................Animalia (Kingdom) - animals ................................Planulozoa (Clade) ..................................Bilateria (Subkingdom) - bilaterians ....................................Nephrozoa (Clade) ......................................Deuterostomia (Infrakingdom) ........................................Chordata (Phylum) - chordates ..........................................Craniata (Subphylum) ............................................Vertebrata (Infraphylum) - vertebrates ..............................................Pan-Gnathostomata (Clade) ................................................Gnathostomata (Superclass) - jawed vertebrates ..................................................Eugnathostomata ([unranked]) ....................................................Pan-Osteichthyes (Clade) ......................................................Osteichthyes (Clade) ........................................................Pan-Sarcopterygii ([unranked]) ..........................................................Sarcopterygii ([unranked]) ............................................................Dipnotetrapodomorpha ([unranked]) ..............................................................Rhipidistia ([unranked]) ................................................................Tetrapodomorpha ([unranked]) ..................................................................Osteolepidida (Clade) ....................................................................Eotetrapodiformes ([unranked]) ......................................................................Elpistostegalia ([unranked]) ........................................................................Stegocephali (Clade) ..........................................................................Labyrinthodontia (Clade) ............................................................................Tetrapoda (Clade) ..............................................................................Pan-Amniota (Clade) ................................................................................Batrachosauria ([unranked]) ..................................................................................Amniota (Clade) ....................................................................................Reptilia (Class) - reptiles ......................................................................................Eureptilia ([unranked]) ........................................................................................Romeriida ([unranked]) ..........................................................................................Diapsida (Clade) ............................................................................................Neodiapsida (Clade) ..............................................................................................Pan-Archelosauria (Clade) ................................................................................................Archelosauria (Clade) ..................................................................................................Pan-Archosauria (Clade) ....................................................................................................Archosauromorpha (Clade) ......................................................................................................Crocopoda (Clade) ........................................................................................................Archosauriformes (Clade) ..........................................................................................................Crurotarsi (Clade) ............................................................................................................Archosauria (Clade) ..............................................................................................................Pan-Aves (Clade) ................................................................................................................Ornithodira (Clade) ..................................................................................................................Dinosauromorpha (Clade) ....................................................................................................................Dinosauriformes (Clade) ......................................................................................................................Dracohors (Clade) ........................................................................................................................Dinosauria (Clade) ..........................................................................................................................Saurischia (Clade) ............................................................................................................................Eusaurischia (Clade) ..............................................................................................................................Theropoda (Clade) ................................................................................................................................Neotheropoda (Clade) ..................................................................................................................................Averostra (Clade) ....................................................................................................................................Tetanurae (Clade) ......................................................................................................................................Orionides (Clade) ........................................................................................................................................Avetheropoda (Clade) ..........................................................................................................................................Coelurosauria (Clade) ............................................................................................................................................Tyrannoraptora (Clade) ..............................................................................................................................................Maniraptoriformes (Clade) ................................................................................................................................................Maniraptora (Clade) ..................................................................................................................................................Pennaraptora (Clade) ....................................................................................................................................................Paraves (Clade) ......................................................................................................................................................Avialae (Clade) ........................................................................................................................................................Aves (Subclass) ..........................................................................................................................................................Pygostylia (Clade) ............................................................................................................................................................Ornithothoraces (Clade) ..............................................................................................................................................................Ornithuromorpha (Clade) ................................................................................................................................................................Ornithurae (Clade) ..................................................................................................................................................................Carinatae (Clade) ....................................................................................................................................................................Neornithes (Clade) - living birds ......................................................................................................................................................................Palaeognathae (Cohort) ........................................................................................................................................................................Ratitae (Subcohort) ..........................................................................................................................................................................Casuariimorphae (Superorder) ............................................................................................................................................................................Casuariiformes (Order) ..............................................................................................................................................................................Dromaiidae (Family) - emus ................................................................................................................................................................................Dromaius (Genus) ..................................................................................................................................................................................‡Dromaius ater (Species) - King Island emu ..................................................................................................................................................................................Dromaius novaehollandiae (Species) - emu ..................................................................................................................................................................................‡Dromaius baudinianus (Species) - Kangaroo Island emu

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Last updated: 21 Sep 2025