Kaririavis

Erinnya litegeeza: “Kariri bird, named after the Karirí people of northeastern Brazil”1

Yalyanga: EnnyamaEbinyonyi eby'olubereberyeEntandikwa ya Kuretasi

Kaririavis was a tiny, sparrow-sized bird that lived about 115 million years ago in what is now Brazil. It is one of the oldest known birds of its group from the southern continents. Scientists know it from just one fossil foot, but that foot tells a big story!1 2

Yabeerawo

emyaka obukadde 120 okutuuka ku 113 emabega4

Entandikwa ya Kuretasi

Ebisigalira byazuulibwa mu

Pedra Branca Mine, Nova Olinda County, Ceará State, Brazil1

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)

Kaririavis 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

Kaririavis is the oldest known ornithuromorph bird from Gondwana, the ancient southern supercontinent.1 2

Its name honors the Karirí people, an indigenous group from northeastern Brazil.1

The fossil is just a single foot, but it includes at least 10 preserved contour feathers, which are the feathers that cover a bird's body.1

Kaririavis had a very large, hooked claw on its second toe, which was about one third the length of its foot bone.1

Unlike many early birds that lived near water, Kaririavis's foot shape suggests it may have spent most of its time on the ground.1

The fossil was found in the Crato Formation, a famous fossil site in Brazil known for preserving soft tissues like feathers.1

Ekifaananyi kya Kaririavis 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: Kaririavis
Yatuumibwa: Carvalho et al. 20214
Ekibinja: Ebinyonyi eby'olubereberye
Ekika / ekibinja: Ornithuromorpha4
Engabanya: Theropoda > Avialae4
Emyaka gy'enjazi: emyaka obukadde 120 okutuuka ku 113 (Aptian)4
Ensengeka z'enjazi: Crato4
Ensi: Buraziiri4
Ebisigalira ebyazuulibwa: 1 mu The Paleobiology Database4
Okuzuulibwa: Kaririavis was named by Carvalho and colleagues in 2021, based on a fossil foot found at Pedra Branca Mine in Brazil. The species name 'mater' means 'mother' in Latin, because it is the oldest ornithuromorph from South America.1 3
Kikyakubaganyizibwako ebirowoozo: Scientists are not sure whether Kaririavis lived on the ground or in the trees, because its foot has a mix of features that point to different lifestyles.1

Ebituufu gye biva

A new ornithuromorph bird from the Lower Cretaceous of South America (igeo.ufrj.br)
Kaririavis (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Kaririavis in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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