Gonkoken
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.24
Rairarama rini?
Raiva hombe sei?
Raiva refu zvakadii?
Raiva rakakwirira zvakadii?
fungidziro
Rairema zvakadii?
kureba seimbwa 4 kubva pamhino kusvika kumuswe🍌kureba semabhanana 22 akatevedzana🍉kurema semanwiwa 200🧸kurema sevana vekireshi 53🎒kurema sevana vechikoro 31🐻❄️kurema semabere echando 2🏃raigona kumhanya mamita 100 mumasekonzi 11 (munhu anomhanya kupfuura vose anoda 9.6)Gonkoken raiva hombe sei kana richienzaniswa NEWE?
Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.
Raimhanya zvakadii?
Zvinonakidza
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'.21
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

Mibvunzo inonyanya kubvunzwa nezve 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.12
?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.12
Mubvisi wengano
Ngano: All duck-billed dinosaurs are hadrosaurids (true duckbills).
Chokwadi: 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
Zvevanyanzvi vemadhino
- Zita resainzi
- Gonkoken
- Akaripa zita:
- Alarcón-Muñoz et al. 20234
- Boka
- Vanodya miriwo vane miromo
- Mhuri / boka
- Hadrosauroidea4
- Kurongwa kwemhuka
- Ornithischia > Ornithopoda > Iguanodontia4
- Zera rematombo
- makore mamiriyoni 72 kusvika 66 (Maastrichtian)4
- Mapoka ematombo
- Dorotea4
- Nyika
- Chile4
- Zvinyorwa zvemafosiri
- 1 mu The Paleobiology Database4
- Kuwanikwa
- 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.24
- Zvichiri kupokanwa
- 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
Kunobva chokwadi
- 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): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.
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