Dino Wiki / Tut ils dinos / Erbivors cun pichel

Carta da dino nr. 0743 da 2 027

Gonkoken

Il num vul dir: “similar to a wild duck or swan”1 2

Mangiava: PlantasErbivors cun pichelCretacic tardiv

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

Viveva

avant 72 fin 66 milliuns onns4

Cretacic tardiv

Fossils chattads en

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

Lunghezza

4 m (13 ft)2

Paisa

fin 1 tonnas (2 200 lb)3

Autezza

1,2 m (3,9 ft)

stima

Spertadad maximala

var 33 km/h (21 mph)

Currer, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant aut era el?

stima

Quant grev era el?

uschè grev sco 50 chauns

uschè lung sco 4 chauns dal nas a la cuauschè lung sco 22 bananas ina suenter l'autrauschè grev sco 200 melunasuschè grev sco 53 uffants da scolettauschè grev sco 31 scolarsuschè grev sco 2 urs polarspudess currer 100 meters en 11 secundas (il pli spert uman dovra 9,6)

Quant grond era Gonkoken cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Gonkoken var 33 km/h (21 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Gonkoken fatg cun IA — In maletg fatg cun IA che mussa co Gonkoken pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart Gonkoken

?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

Chatschader da mitus

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

Vardad: 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

Per experts da dinos

Num scientific: Gonkoken
Numnà da: Alarcón-Muñoz et al. 20234
Gruppa: Erbivors cun pichel
Famiglia / clada: Hadrosauroidea4
Classificaziun: Ornithischia > Ornithopoda > Iguanodontia4
Vegliadetgna da la crappa: 72 fin 66 milliuns onns (Maastrichtian)4
Formaziuns da crap: Dorotea4
Pajais: Chile4
Chats da fossils: 1 en The Paleobiology Database4
Scuverta: 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
Anc discutà: 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

Danunder che vegnan ils fatgs

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): vegliadetgna, lieus, formaziuns da crap, classificaziun.

Mintga fatg sin questa pagina ha in numer che maina tar sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans da dinos, betg ina revista scientifica. Scriva a nus sin [email protected] e nus il curregin.

Rex ha fom! Dino Wiki è in project d'in bab per ses figl che ama ils dinos, gratuit, senza reclama e senza trackers. Ils creschids pon dar ina marenda a Rex per gidar a tegnair la pagina online.Pavlar Rex