Kaririavis

Din no ase: “Kariri bird, named after the Karirí people of northeastern Brazil”1

Ɔdii: NamNnomaa a wɔdii kanKretasias Mfiase

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

Ɔtenaa ase

mfeɛ ɔpepem 120 kɔsi 113 a atwam4

Kretasias Mfiase

Wɔhunuu fɔsil wɔ

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

Ntɛmntɛm a ɛsen biara

bɛyɛ 27 km/h (17 mph)

Wimtuo, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Kaririavis bɛyɛ 27 km/h (17 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

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

Yei yɛ Kaririavis mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

Ma dino ho animdefoɔ

Nyansahu din: Kaririavis
Obi a ɔtoo din: Carvalho et al. 20214
Kuo: Nnomaa a wɔdii kan
Abusua / kuo kɛseɛ: Ornithuromorpha4
Nkyekyɛmu: Theropoda > Avialae4
Abotan no mfeɛ: mfeɛ ɔpepem 120 kɔsi 113 (Aptian)4
Abotan nhyehyɛeɛ: Crato4
Aman: Brazil4
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu4
Nhunumu: 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
Wɔda so gye ho akyinnye: 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

Baabi a nsɛm no firi

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): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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