Kaririavis

Dzina limatanthauza: “Kariri bird, named after the Karirí people of northeastern Brazil”1

Ankadya: NyamaMbalame zoyambiriraKumayambiriro kwa Kretase

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

Ankakhala

zaka 120 mpaka 113 miliyoni zapitazo4

Kumayambiriro kwa Kretase

Mafosili apezeka ku

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

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)

Kaririavis 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

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

Chithunzi cha Kaririavis chopangidwa ndi AI — Chithunzi cha momwe Kaririavis 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: Kaririavis
Anapatsidwa dzina ndi: Carvalho et al. 20214
Gulu: Mbalame zoyambirira
Banja / kladi: Ornithuromorpha4
Magawidwe a sayansi: Theropoda > Avialae4
Zaka za miyala: zaka 120 mpaka 113 miliyoni (Aptian)4
Mapangidwe a miyala: Crato4
Mayiko: Brazil4
Zolemba za mafosili: 1 mu The Paleobiology Database4
Kupezeka: 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
Akukambiranabe: 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

Kumene mfundo zimachokera

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

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