Dinokaart nr. 0944 van 2 027

Kaririavis

Naam beteken: “Kariri bird, named after the Karirí people of northeastern Brazil”1

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

Het geleef

120 tot 113 miljoen jaar gelede4

Vroeë Kryt

Fossiele gevind in

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

Topspoed

omtrent 27 km/h (17 mph)

Vlieënd, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe vinnig was dit?

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

Kaririavis omtrent 27 km/h (17 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

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

KI-prent van Kaririavis — 'n KI-prent van hoe Kaririavis dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.

Vir dino-kenners

Wetenskaplike naam: Kaririavis
Benoem deur: Carvalho et al. 20214
Groep: Vroeë voëls
Familie / klade: Ornithuromorpha4
Klassifikasie: Theropoda > Avialae4
Ouderdom van die rotse: 120 tot 113 miljoen jaar (Aptian)4
Rotsformasies: Crato4
Lande: Brasilië4
Fossielrekords: 1 in The Paleobiology Database4
Ontdekking: 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
Steeds omstrede: 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

Waar die feite vandaan kom

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): ouderdom, plekke, rotsformasies, klassifikasie.

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