Allkaruen

Din no ase: “ancient brain”1

Ɔdii: NsuomnamWim mmoa a wɔweaJurasik Mfiase kɔsi Jurasik MfinimfiniNyansahu mu deɛ, ɔnyɛ dinosɔɔ

Allkaruen was a small flying reptile that lived about 180 to 168 million years ago. It had a very well-preserved brain case, which helps scientists learn how pterosaur brains evolved.3 1

Asɛm a ɛyɛ anigye: pterosɔɔ tuu wim wɔ dinosɔɔ so, nanso na wɔyɛ wɔn abusuafoɔ, na wɔnyɛ dinosɔɔ ankasa.

Ɔtenaa ase

mfeɛ ɔpepem 180 kɔsi 169 a atwam3

Jurasik Mfiase kɔsi Jurasik Mfinimfini

Wɔhunuu fɔsil wɔ

La Lluvia locality, Cañadón Carrizal, Chubut Province, Argentina1

Ntɛmntɛm a ɛsen biara

bɛyɛ 52 km/h (32 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)

Allkaruen bɛyɛ 52 km/h (32 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

Allkaruen's name comes from the Tehuelche words 'all' meaning brain and 'karuen' meaning ancient, so it means 'ancient brain'.1

Its brain case was found uncrushed, which is very rare for pterosaurs, and scientists used CT scans to make a virtual model of its brain.1

Allkaruen had a mix of old and new brain features, which helps fill a gap between early pterosaurs and the later pterodactyloids.1

The fossils were found in a lake deposit, and the species name 'koi' means lake in Tehuelche.1

Allkaruen lived during the Early to Middle Jurassic, about 180 to 168 million years ago.3

Its lower jaw was long with a concave profile, and it had large, separated teeth at the front.1

Yei yɛ Allkaruen 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.

wobisaeɛ

Nsɛm a wɔbisa bebree fa Allkaruen ho

?Was Allkaruen a dinosaur?

No, Allkaruen was a pterosaur, a flying reptile that lived at the same time as dinosaurs but was not a dinosaur.2

?How big was Allkaruen?

Allkaruen was a small pterosaur. Its exact size is not known, but its skull was only a few centimetres long.2

?What did Allkaruen eat?

Scientists are not sure, but its long lower jaw with large front teeth suggests it may have caught fish or other small prey.2

?Where did Allkaruen live?

Allkaruen lived in what is now Argentina, near a lake. Its fossils were found in the Cañadón Asfalto Formation in Chubut Province.2

Ma dino ho animdefoɔ

Nyansahu din: Allkaruen
Obi a ɔtoo din: Codorniú et al. 20163
Kuo: Wim mmoa a wɔwea
Abusua / kuo kɛseɛ: Breviquartossa3
Nkyekyɛmu: Pterosauria3
Abotan no mfeɛ: mfeɛ ɔpepem 180 kɔsi 169 (Toarcian / Bajocian)3
Abotan nhyehyɛeɛ: Cañadón Asfalto3
Aman: Argentina3
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu3
Nhunumu: Allkaruen was named by Codorniú and colleagues in 2016, based on fossils found in Argentina. The main specimen includes a braincase, a lower jaw, and neck bones.3 1
Wɔda so gye ho akyinnye: Scientists are still debating how Allkaruen is related to other pterosaurs, because some of its features are similar to both early and later groups.1

Baabi a nsɛm no firi

A Jurassic pterosaur from Patagonia and the origin of the pterodactyloid neurocranium (pmc.ncbi.nlm.nih.gov)
Allkaruen (en.wikipedia.org)
Allkaruen in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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