Ikarita ya dinozore nimero 1229 muri 2 027

Nakonanectes

Izina risobanura: “Nakona swimmer”1

Yaryaga: InyamaPlesiyozoreKiretase ya nyumaMu by'ukuri si dinozore

Nakonanectes was a plesiosaur, a marine reptile that lived in the sea, not a dinosaur. It had a shorter neck than most of its relatives, making it a special kind of elasmosaurid.1 2

Akantu gashimishije: iki gikururanda cyo mu nyanja cyogaga mu gihe dinozore zagendaga ku butaka. Bose bakita dinozore, ariko cyari mu rindi shami ry'ibikururanda.

Yabayeho

hashize imyaka miliyoni 72 kugeza 664

Kiretase ya nyuma

Ibisigazwa byabonetse muri

Montana, USA3 1

Uburebure

5,1 kugeza 5,6 m (17 kugeza 18 ft)1 2

Umuvuduko wo hejuru

nka 27 km/h (17 mph)

Koga, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

ndende nk'imbwa 6 zikurikiranyendende nk'imineke 31 ikurikiranyeyashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 6,7

Nakonanectes yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Nakonanectes nka 27 km/h (17 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

Nakonanectes had only 39 to 42 neck bones, while many other elasmosaurids had over 70.1 2

It was one of the smallest adult elasmosaurids ever found, measuring only 5.1 to 5.6 metres long.1 2

The fossil was discovered in 2010 by a hunter named David Bradt in a canyon in Montana.1

Nakonanectes lived about 72 to 66 million years ago, at the end of the Age of Dinosaurs.3

Its skull was found nearly complete, which is rare for elasmosaurid fossils.1 2

Short-necked elasmosaurids like Nakonanectes evolved from long-necked ancestors in different parts of the world.1 2

Ishusho ya Nakonanectes yakozwe na AI — Ishusho yakozwe na AI yerekana uko Nakonanectes ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

Ku bazobereye muri dinozore

Izina rya siyansi: Nakonanectes
Yiswe na: Serratos et al. 20174
Itsinda: Plesiyozore
Umuryango / ishami: Elasmosauridae4
Ishyirwa mu byiciro: Plesiosauria > Elasmosauridae > Sauropterygia4
Imyaka y'amabuye: imyaka miliyoni 72 kugeza 66 (Maastrichtian)4
Inzego z'amabuye: Bearpaw Shale4
Ibihugu: Amerika4
Ibisigazwa byanditswe: 1 muri The Paleobiology Database4
Ivumburwa: Nakonanectes was named in 2017 by Danielle Serratos, Patrick Druckenmiller, and Roger Benson. The fossil was found in 2010 by hunter David Bradt in the Bearpaw Shale of Montana, USA.1 3
Biracyagibwaho impaka: Scientists are still debating whether Nakonanectes belongs to the Styxosaurinae or Elasmosaurinae group.3

Aho amakuru yakuwe

Nakonanectes (en.wikipedia.org)
A New Elasmosaurid (Sauropterygia, Plesiosauria) from the Bearpaw Shale (Late Cretaceous, Maastrichtian) of Montana Demonstrates Multiple Evolutionary Reductions of Neck Length Within Elasmosauridae (bioone.org)
paleobiodb.org (paleobiodb.org)
Nakonanectes in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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