Conflicto antarcticus

Extinct species of bird

Conflicto antarcticus

Temporal range: Early Paleocene

PreꞒ

Tambussi et al. skeletal reconstruction of Conflicto antarcticus
Scientific classification
Kingdom:  | Animalia
Phylum:  | Chordata
Class:  | Aves
Order:  | Anseriformes
Genus:  | †Conflicto
Claudia P. Tambussi et al. 2019
Species:  |

†C. antarcticus

Binomial name
†Conflicto antarcticus

Claudia P. Tambussi et al. 2019

Conflicto antarcticus is an extinct species of stem waterfowl whose fossils were found in the early Paleocene López de Bertodano Formation of Antarctica, the only species of its genus. It is characterized by it slender body and long legs, yet possesses a duck-like bill which indicates the form of beak evolved early in Anseriformes.[1]

## Description

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Conflicto is known from a single partially complete specimen described in January 2019. It had long legs compared to its body, contrasting what is seen in modern ducks. It is estimated to be around 36 centimetres (14 in) in length, and had a long head relative to body size. Its beak had a similar structure to that of ducks and geese, but was not as wide. The rostrum possessed narial openings wider than that of modern Anseriformes. Its neck was about half its body length, possessing (estimated) 15 long vertebrae.[1]

## Classification

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Conflicto was a likely a stem anseriform, equally related to the current extant clades. The genus Anatalavis is hypothesized to be less related to the magpie goose as previously thought, but placed as a sister clade to Conflicto, though this isn't conclusive. The phylogenetic classification remains uncertain, but is more likely to be stem-waterfowl rather than crown-waterfowl, separated from modern anseriform lineages.[1]

## References

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* Geography portal
* Paleontology portal
* Birds portal

1. ^ a b c Tambussi, Claudia P.; Degrange, Federico J.; De Mendoza, Ricardo S.; Sferco, Emilia; Santillana, Sergrio (2019). "A stem anseriform from the early Palaeocene of Antarctica provides new key evidence in the early evolution of waterfowl". Zoological Journal of the Linnean Society. 186 (3): 673–700\. doi:10.1093/zoolinnean/zly085.

* v
* t
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Genera of waterfowl and their extinct allies

* Kingdom: Animalia
* Phylum: Chordata
* Class: Aves
* Clade: Neognathae
* Superorder: Galloanserae

| Avemetatarsalia|

*     * see Avemetatarsalia

Theropoda|

*     * see Theropoda

Maniraptora|

*     * see Maniraptora

Anserimorphae|

*     * see below↓

Anserimorphae

Anserimorphae

* †Conflicto
* †Gastornis?
* †Dromornithidae?
* †Pelagornithidae?
* †Vegaviidae?

†Presbyornithidae|

* Bumbalavis
* Headonornis?
* Murgonornis
* Presbyornis
* Proherodius
* Telmabates
* Teviornis
* Wilaru

†Anachronornithidae|

* Anachronornis
* Danielsavis?

Anseriformes
sensu stricto|

* †Agnopterus?
* †Eonessa
* †"Headonornis"?
* †Naranbulagornis
* †Paakniwatavis
* †Palaeopapia
* †Peioa
* †Petropluvialis?
* †Proherodius?
* †Wunketru

Anhimae|

* †Chaunoides

Anhimidae|

* Anhima
* †Chainkanas
* Chauna

Anseres|

| Anseranatoidea|

* †Anatalavis?

Anseranatidae|

* Anseranas
* †Anserpica
* †Eoanseranas

Anatoidea|

| †Paranyrocidae|

* Paranyroca

|

Anatidae|

*     * See below ↓

Anatidae

Anatidae

* †Aldabranas?
* †Allgoviachen
* †Ankonetta?
* †Awengkere
* †Bambolinetta?
* †Caerulonettion
* †Cayaoa?
* †Chelychelynechen?
* †Cousteauvia
* †Eonerornis?
* †Eutelornis?
* †Garganornis?
* †Helonetta?
* †Heteroanser?
* †Lavanttalornis
* †Loxornis?
* †Mioquerquedula?
* †Nogusunna?
* †Notochen
* †Proanser?
* †Protomelanitta?
* †Ptaiochen?
* †Selenonetta
* †Sharganetta?
* †Sinanas?
* †Tagayanetta
* †Talpanas?
* †Teleornis?
* †Thambetochen?
* †Wasonaka?

†Romainvillinae|

* Paracygnopterus
* Romainvillia
* Saintandrea

Dendrocygninae|

* Dendrocygna
* Thalassornis

†Dendrocheninae|

* Dendrochen
* Manuherikia
* Mionetta

Stictonettinae|

* Stictonetta

Anserinae|

* †Afrocygnus
* †Annakacygna
* Anser
* †Anserobranta
* †Asiavis
* †Bonibernicla
* Branta
* Cereopsis
* †"Chenopis"
* †Cnemiornis
* Coscoroba
* †Cygnavus
* Cygnus
* †Cygnopterus
* †Eremochen
* †Megalodytes
* †Paracygnus
* †Presbychen

Tadorninae|

* Alopochen
* †Australotadorna
* †Brantadorna
* Cairina
* †Centrornis
* Chloephaga
* Cyanochen
* Hymenolaimus
* †Kaikenia
* Merganetta
* †Miotadorna
* †Nannonetta
* Neochen
* Plectropterus
* †Pleistoanser
* Radjah
* Sarkidiornis
* Tachyeres
* Tadorna
* †Tamtamia

Anatinae|

* Aix
* Amazonetta
* †Anabernicula
* Asarcornis
* Biziura
* Callonetta
* †Chenoanas?
* Chenonetta
* †Dunstanetta
* †Eoneornis?
* †Lavadytis
* Lophonetta
* Malacorhynchus
* Marmaronetta
* Netta
* Nettapus
* †Pinpanetta
* Pteronetta
* †?Rhodonessa
* Salvadorina
* Speculanas

Oxyurini|

* Heteronetta
* Nomonyx
* Oxyura
* †Tirarinetta

Mergini|

* Bucephala
* †Camptorhynchus
* †Chendytes
* Clangula
* Histrionicus
* Lophodytes
* Melanitta
* Mergellus
* Mergus
* Polysticta
* †Shiriyanetta
* Somateria

Anatini|

* Anas
* Mareca
* †Matanas
* Sibirionetta
* Spatula

Aythyini|

* Aythya

Taxon identifiers

Conflicto antarcticus|

* Wikidata: Q63928863
* Wikispecies: Conflicto antarcticus
* GBIF: 11183368
* Paleobiology Database: 380779

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*[†]: Extinct