Yatenavis

Il num vul dir: “stone bird”1

Mangiava: CharnUtschels primitivsCretacic tardiv

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

Viveva

avant 72 fin 66 milliuns onns3

Cretacic tardiv

Fossils chattads en

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

Spertadad maximala

var 27 km/h (17 mph)

Sgular, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Yatenavis var 27 km/h (17 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Yatenavis fatg cun IA — In maletg fatg cun IA che mussa co Yatenavis pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

Per experts da dinos

Num scientific: Yatenavis
Numnà da: Álvarez Herrera et al. 20233
Gruppa: Utschels primitivs
Famiglia / clada: Enantiornithes3
Classificaziun: Theropoda > Avialae3
Vegliadetgna da la crappa: 72 fin 66 milliuns onns (Maastrichtian)3
Formaziuns da crap: Chorrillo3
Pajais: Argentinia3
Chats da fossils: 1 en The Paleobiology Database3
Scuverta: 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
Anc discutà: Scientists are not sure exactly what Yatenavis looked like or how it behaved, because only a single wing bone has been found.2 1

Danunder che vegnan ils fatgs

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): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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