Yatenavis

Leina le raya: “stone bird”1

E jele: NamaDinonyane tsa ntlhaBofelo jwa Cretaceous

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

E tshetse

dimilione tsa dingwaga di le 72 go ya go 66 tse di fetileng3

Bofelo jwa Cretaceous

Difosili di fitlhetswe kwa

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

Bonako jo bogolo

e ka nna 27 km/h (17 mph)

Go fofa, kakanyo

E tshetse leng?

Triassic

Jurassic

Cretaceous

dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le bonako go le kae?

Motho yo o tsamayang e ka nna 5 km/h (3 mph)

Ngwana mo baesekeleng e ka nna 12 km/h (7 mph)

Yatenavis e ka nna 27 km/h (17 mph)

Pitse e e sianang ka bonako e ka nna 65 km/h (40 mph)

Lengau e ka nna 100 km/h (62 mph)

dilo tse di monate

Dintlha tse di monate

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

Setshwantsho sa Yatenavis se se dirilweng ke AI — Setshwantsho se se dirilweng ke AI sa kafa Yatenavis e ka tswang e ne e lebega ka gone, se dirilwe ke khomputara go ya ka se borasaense ba se itseng. Ke kakanyo fela: phologolo ya nnete e ka tswa e ne e lebega ka tsela e sele, mme ga go ope yo o itseng mebala ya yona ya nnete.

Ya baitseanape ba didino

Leina la saense: Yatenavis
Leina le neilwe ke: Álvarez Herrera et al. 20233
Setlhopha: Dinonyane tsa ntlha
Lelapa / clade: Enantiornithes3
Thulaganyo: Theropoda > Avialae3
Bogolo jwa matlapa: 72 go ya go 66 dimilione tsa dingwaga (Maastrichtian)3
Dibopego tsa matlapa: Chorrillo3
Dinaga: Arejentina3
Direkoto tsa difosili: 1 mo The Paleobiology Database3
Go fitlhelwa: 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
Go sa ntse go ganetsanwa: Scientists are not sure exactly what Yatenavis looked like or how it behaved, because only a single wing bone has been found.2 1

Kwa dintlha di tswang teng

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): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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