Yatenavis

Dzina limatanthauza: “stone bird”1

Ankadya: NyamaMbalame zoyambiriraKumapeto kwa Kretase

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

Ankakhala

zaka 72 mpaka 66 miliyoni zapitazo3

Kumapeto kwa Kretase

Mafosili apezeka ku

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

Liwiro lalikulu kwambiri

pafupifupi 27 km/h (17 mph)

Kuuluka, kuyerekeza

Ankakhala liti?

Triasiki

Jurasiki

Kretase

Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali ndi liwiro lotani?

Munthu akuyenda pafupifupi 5 km/h (3 mph)

Mwana pa njinga pafupifupi 12 km/h (7 mph)

Yatenavis pafupifupi 27 km/h (17 mph)

Hatchi ikuthamanga pafupifupi 65 km/h (40 mph)

Kakwiyo pafupifupi 100 km/h (62 mph)

zinthu zosangalatsa

Mfundo zosangalatsa

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

Chithunzi cha Yatenavis chopangidwa ndi AI — Chithunzi cha momwe Yatenavis mwina ankaonekera, chopangidwa ndi kompyuta kuchokera pa zomwe asayansi amadziwa. Ndi kungoyerekeza: nyama yeniyeniyo mwina inkaoneka mosiyana, ndipo palibe amene akudziwa mitundu yake yeniyeni.

Kwa akatswiri a madino

Dzina la sayansi: Yatenavis
Anapatsidwa dzina ndi: Álvarez Herrera et al. 20233
Gulu: Mbalame zoyambirira
Banja / kladi: Enantiornithes3
Magawidwe a sayansi: Theropoda > Avialae3
Zaka za miyala: zaka 72 mpaka 66 miliyoni (Maastrichtian)3
Mapangidwe a miyala: Chorrillo3
Mayiko: Argentina3
Zolemba za mafosili: 1 mu The Paleobiology Database3
Kupezeka: 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
Akukambiranabe: Scientists are not sure exactly what Yatenavis looked like or how it behaved, because only a single wing bone has been found.2 1

Kumene mfundo zimachokera

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): zaka, malo, mapangidwe a miyala, magawidwe a sayansi.

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