Yatenavis

Erinnya litegeeza: “stone bird”1

Yalyanga: EnnyamaEbinyonyi eby'olubereberyeEnkomerero ya Kuretasi

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

Yabeerawo

emyaka obukadde 72 okutuuka ku 66 emabega3

Enkomerero ya Kuretasi

Ebisigalira byazuulibwa mu

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

Sipiidi esinga

nga 27 km/h (17 mph)

Okubuuka, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

Yali wa mbiro kwenkana wa?

Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Yatenavis nga 27 km/h (17 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

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

Ekifaananyi kya Yatenavis ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Yatenavis
Yatuumibwa: Álvarez Herrera et al. 20233
Ekibinja: Ebinyonyi eby'olubereberye
Ekika / ekibinja: Enantiornithes3
Engabanya: Theropoda > Avialae3
Emyaka gy'enjazi: emyaka obukadde 72 okutuuka ku 66 (Maastrichtian)3
Ensengeka z'enjazi: Chorrillo3
Ensi: Arigentina3
Ebisigalira ebyazuulibwa: 1 mu The Paleobiology Database3
Okuzuulibwa: 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
Kikyakubaganyizibwako ebirowoozo: Scientists are not sure exactly what Yatenavis looked like or how it behaved, because only a single wing bone has been found.2 1

Ebituufu gye biva

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): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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