Kaririavis

Lebitso le bolela: “Kariri bird, named after the Karirí people of northeastern Brazil”1

E jele: NamaDinonyana tsa peleKretase ya Pele

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

E phetse

dilemo tse dimilione tse 120 ho isa ho 113 tse fetileng4

Kretase ya Pele

Difosili di fumanwe ho

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

Lebelo le phahameng ka ho fetisisa

e ka bang 27 km/h (17 mph)

Ho fofa, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Kaririavis e ka bang 27 km/h (17 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

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

dintho tse monate

Dintlha tse monate

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

Setshwantsho sa Kaririavis se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Kaririavis e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Kaririavis
E rehilwe ke: Carvalho et al. 20214
Sehlopha: Dinonyana tsa pele
Lelapa / leloko: Ornithuromorpha4
Tlhophiso: Theropoda > Avialae4
Dilemo tsa mafika: dilemo tse dimilione tse 120 ho isa ho 113 (Aptian)4
Dibopeho tsa mafika: Crato4
Dinaha: Brazil4
Direkoto tsa difosili: 1 ho The Paleobiology Database4
Ho sibollwa: 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
E sa ntse e phehwa kgang: 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

Moo dintlha di tswang teng

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): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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