Yatenavis

Hiika maqaa: “stone bird”1

Kan nyaate: FoonSimbirroota jalqabaaKireetaashasii Dhumaa

Yatenavis was a tiny bird that lived near the end of the age of dinosaurs. It was about the size of a sparrow and flew through the forests of what is now Patagonia in Argentina. This little bird is one of the southernmost enantiornithine birds ever found.2 1

Kan jiraate

waggaa miliyoona 72 hanga 66 dura3

Kireetaashasii Dhumaa

Fosiliiwwan kan itti argaman

Estancia La Anita, Santa Cruz Province, Patagonia, Argentina2 1

Saffisa ol'aanaa

gara 27 km/sa'a (17 mph)

Balali'uu, tilmaama

Yoom jiraate?

Tiraayaasikii

Juraasikii

Kireetaashasii

waggaa miliyoona 252 dura20114566, asteerooyidii

Hammam saffisaa ture?

Nama miilaan deemu gara 5 km/sa'a (3 mph)

Daa'ima saayikilii irra jiru gara 12 km/sa'a (7 mph)

Yatenavis gara 27 km/sa'a (17 mph)

Farda gulufu gara 65 km/sa'a (40 mph)

Cheetaa gara 100 km/sa'a (62 mph)

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

Yatenavis is known from just a single bone: the lower half of a right wing bone (humerus).2 1

It lived about 72 to 66 million years ago, during the Maastrichtian stage of the Late Cretaceous.3

Yatenavis is the southernmost enantiornithine bird ever discovered anywhere in the world.2 1

It was one of the smallest enantiornithine birds from the Late Cretaceous of South America, about the size of a sparrow.2 1

Its name comes from the Aoni Kenk word for 'stone' and Latin for 'bird', meaning 'stone bird'.1

Yatenavis lived alongside other birds, including a larger enantiornithine and a bird called Kookne yeutensis.1

The fossil was found in the Chorrillo Formation, which was formed by a river system in a cold, high-latitude environment.2 1

Fakkii AI'n hojjetame: Yatenavis — Fakkii AI'n hojjetame kan Yatenavis maal fakkaachuu akka danda'u agarsiisu, kompiitaraan beekumsa saayintistootaa irratti hundaa'uun hojjetame. Tilmaama qofa: bineensi dhugaa adda ta'ee mul'achuu danda'a, halluu isaa dhugaa immoo namni beeku hin jiru.

Ogeeyyii daayinootiif

Maqaa saayinsii: Yatenavis
Kan maqaa baase: Álvarez Herrera et al. 20233
Garee: Simbirroota jalqabaa
Maatii / kilaadii: Enantiornithes3
Ramaddii: Theropoda > Avialae3
Umurii dhagaawwanii: waggaa miliyoona 72 hanga 66 (Maastrichtian)3
Caasaawwan dhagaa: Chorrillo3
Biyyoota: Arjentiinaa3
Galmee fosilii: 1 The Paleobiology Database keessa3
Argannoo: Yatenavis was named and described in 2023 by a team of Argentine and Japanese scientists, including Gerardo Álvarez Herrera and Federico Agnolín. The single fossil bone was found during a joint expedition in March 2022 at Estancia La Anita in Patagonia, Argentina.2 1
Ammallee falmisiisaa: Scientists are not sure exactly what Yatenavis looked like or how it behaved, because only a single wing bone has been found.2 1

Odeeffannoon eessaa dhufa

New enantiornithine bird from the the uppermost Cretaceous (Maastrichtian) of southern Patagonia, Argentina (ri.conicet.gov.ar)
New enantiornithine bird from the uppermost Cretaceous (Maastrichtian) of southern Patagonia, Argentina (sciencedirect.com)
Yatenavis in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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