Yatenavis

Zita rinoreva: “stone bird”1

Raidya: NyamaShiri dzekutangaCretaceous Yekupedzisira

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

Raivapo

makore mamiriyoni 72 kusvika 66 apfuura3

Cretaceous Yekupedzisira

Mafosiri akawanikwa:

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

Kumhanya kwepamusoro

kunenge 27 km/h (17 mph)

Kubhururuka, fungidziro

Rairarama rini?

Triassic

Jurassic

Cretaceous

makore mamiriyoni 252 apfuura20114566, dombo guru rakabva mudenga

Raimhanya zvakadii?

Munhu achifamba kunenge 5 km/h (3 mph)

Mwana ari pabhasikoro kunenge 12 km/h (7 mph)

Yatenavis kunenge 27 km/h (17 mph)

Bhiza richimhanya kunenge 65 km/h (40 mph)

Dindingwe kunenge 100 km/h (62 mph)

zvinhu zvinonakidza

Zvinonakidza

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

Mufananidzo wakagadzirwa neAI: Yatenavis — Mufananidzo wakagadzirwa neAI unoratidza kuti Yatenavis ringangodai raitaridzika sei, wakagadzirwa nekombiyuta kubva pane zvinozivikanwa nemasayendisiti. Ifungidziro chete: mhuka chaiyo ingangodai yaitaridzika zvakasiyana, uye hapana anoziva mavara ayo chaiwo.

Zvevanyanzvi vemadhino

Zita resainzi: Yatenavis
Akaripa zita:: Álvarez Herrera et al. 20233
Boka: Shiri dzekutanga
Mhuri / boka: Enantiornithes3
Kurongwa kwemhuka: Theropoda > Avialae3
Zera rematombo: makore mamiriyoni 72 kusvika 66 (Maastrichtian)3
Mapoka ematombo: Chorrillo3
Nyika: Ajentina3
Zvinyorwa zvemafosiri: 1 mu The Paleobiology Database3
Kuwanikwa: 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
Zvichiri kupokanwa: Scientists are not sure exactly what Yatenavis looked like or how it behaved, because only a single wing bone has been found.2 1

Kunobva chokwadi

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): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.

Chokwadi chega chega papeji ino chine nhamba inoratidza kwachakabva. Kana takakanganisa chimwe chinhu, ruregerero, tiri vanoda madhino, kwete magazini yesainzi. Tiudze pa [email protected] tichazvigadzirisa.

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