Dino Wiki / Dino nyinaa / Ahabandifoɔ a wɔwɔ anomaa ano

Dino kad No. 0743 wɔ 2 027 mu

Gonkoken

Din no ase: “similar to a wild duck or swan”1 2

Ɔdii: NhabanAhabandifoɔ a wɔwɔ anomaa anoKretasias Awieeɛ

Gonkoken was a small duck-billed dinosaur that lived in what is now southern Chile, near Antarctica. It was about as long as a car and used its hundreds of teeth to chew tough plants. This dinosaur is special because it is not a true hadrosaurid, but a more ancient cousin that survived until the very end of the dinosaur age.2 4

Ɔtenaa ase

mfeɛ ɔpepem 72 kɔsi 66 a atwam4

Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

Magallanes Region, Chilean Patagonia (Loma Koken, Río de las Chinas Valley)2 4

Tenten

4 m (13 ft)2

Mu duru

kɔsi ton 1 (2,200 lb)3

Korɔn

1.2 m (3.9 ft)

nsusuiɛ

Ntɛmntɛm a ɛsen biara

bɛyɛ 33 km/h (21 mph)

Mmirikatuo, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ne kɛseɛ yɛ sɛn?

Na ne tenten yɛ sɛn?

Na ne korɔn yɛ sɛn?

nsusuiɛ

Na ne mu yɛ duru sɛn?

ne mu duru te sɛ nkraman 50

ne tenten te sɛ nkraman 4 firi hwene kɔsi duane tenten te sɛ kwadu 22 a wɔde abɔ toatoa sone mu duru te sɛ watamɛlɔn 200ne mu duru te sɛ nkɔkɔaa sukuu mmofra 53ne mu duru te sɛ sukuu mmofra 31ne mu duru te sɛ polar bea 2anka ɔbɛtumi atu mmirika mita 100 wɔ sikɛn 11 mu (onipa a ɔyɛ ntɛm sen biara hia 9.6)

Gonkoken kɛseɛ yɛ sɛn sɛ wode toto WO ho a?

Akontaa nko ara wɔ wo browser mu. Yɛnkora biribiara so, na yɛmmfa biribiara nkɔ baabiara.

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

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

Gonkoken bɛyɛ 33 km/h (21 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

Gonkoken is a 'transitional' duckbill, meaning it is closely related to true hadrosaurids but not one itself. Its ancestors came from North America and arrived in South America earlier than the more advanced duckbills.2

The name Gonkoken comes from the Aónik’enk language, spoken by the indigenous people of the region. 'Gon' means 'similar to' and 'koken' means 'wild duck or swan'.2 1

Fossils of Gonkoken were found in a bonebed containing at least three individuals. The site is still being excavated and may hold many more bones.2

Gonkoken lived about 71.7 to 70.5 million years ago, during the early Maastrichtian stage of the Late Cretaceous. This was just a few million years before the asteroid impact that ended the age of dinosaurs.2

Unlike true hadrosaurids, Gonkoken had fewer than 30 tooth positions in its lower jaw, and its tooth rows did not extend beyond the coronoid process.2

Gonkoken is the first duck-billed dinosaur described from a subantarctic region. Its discovery suggests that some alleged hadrosaurid fossils from Antarctica might actually belong to non-hadrosaurid duckbills like Gonkoken.2

Yei yɛ Gonkoken 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 Gonkoken ho

?How big was Gonkoken?

Gonkoken was a small duck-billed dinosaur, about 4 metres (13 feet) long. That is roughly the length of a small car.1 2

?When did Gonkoken live?

Gonkoken lived about 71.7 to 70.5 million years ago, during the early Maastrichtian stage of the Late Cretaceous. That was just a few million years before the asteroid hit.1 2

?Where was Gonkoken found?

Gonkoken fossils were found in the Río de las Chinas Valley in southern Chile, near the tip of South America. It's the first duck-billed dinosaur described from a subantarctic region.1 2

?Is Gonkoken a hadrosaurid?

No, Gonkoken is not a true hadrosaurid. It is a 'transitional' duckbill, meaning it is closely related to hadrosaurids but belongs to a more ancient group.1 2

Atosɛm sɛefoɔ

Atosɛm: All duck-billed dinosaurs are hadrosaurids (true duckbills).

Nokorɛ: Gonkoken is a duck-billed dinosaur but not a hadrosaurid. It belongs to a more ancient lineage that survived alongside true duckbills in the far south.2

Ma dino ho animdefoɔ

Nyansahu din: Gonkoken
Obi a ɔtoo din: Alarcón-Muñoz et al. 20234
Kuo: Ahabandifoɔ a wɔwɔ anomaa ano
Abusua / kuo kɛseɛ: Hadrosauroidea4
Nkyekyɛmu: Ornithischia > Ornithopoda > Iguanodontia4
Abotan no mfeɛ: mfeɛ ɔpepem 72 kɔsi 66 (Maastrichtian)4
Abotan nhyehyɛeɛ: Dorotea4
Aman: Kyili4
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu4
Nhunumu: Gonkoken was named in 2023 by Alarcón-Muñoz and colleagues. The first bones were found by Mario 'Nano' Ulloa in the Río de las Chinas Valley, and excavations began in 2013, uncovering many disarticulated remains.2 4
Wɔda so gye ho akyinnye: Scientists debate whether all alleged hadrosaurid fossils from Antarctica and subantarctic regions actually belong to non-hadrosaurid duckbills like Gonkoken, rather than true hadrosaurids.2

Baabi a nsɛm no firi

Gonkoken (en.wikipedia.org)
Relict duck-billed dinosaurs survived into the last age of the dinosaurs in subantarctic Chile (science.org)
Scientists discover duck-billed dinosaur roamed Chile 72 million years ago | Reuters (reuters.com)
Gonkoken in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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