Ikarita ya dinozore nimero 0953 muri 2 027

Keilhauia

Izina risobanura: “Keilhau's reptile”1

Yaryaga: InyamaIktiyozoreKiretase ya mbereMu by'ukuri si dinozore

Keilhauia was a dolphin-like marine reptile that lived in the Early Cretaceous, about 145 million years ago. It had large eyes and a long snout, and swam in the shallow seas near what is now Norway. It was about as long as a small car!1

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 143 kugeza 1373

Kiretase ya mbere

Ibisigazwa byabonetse muri

Svalbard, Norway1

Uburebure

3,8 kugeza 4,3 m (12 kugeza 14 ft)1

Umuvuduko wo hejuru

nka 47 km/h (29 mph)

Koga, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

ndende nk'imbwa 4 zikurikiranyendende nk'imineke 24 ikurikiranyeyashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 3,8

Keilhauia 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)

Keilhauia nka 47 km/h (29 mph)

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

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

utuntu twiza cyane

Utuntu dushimishije

Keilhauia is known from only one fossil, discovered in 2010 on the island of Spitsbergen.1

Its species name, nui, comes from the acronym of a Norwegian youth environmental organization called Natur og Ungdom.1

It had a wide top end of its ilium (hip bone) and a short ischiopubis compared to its thigh bone, which helps scientists tell it apart from other ichthyosaurs.1

Keilhauia is the most complete ichthyosaur known from the Berriasian age, the very beginning of the Cretaceous Period.1

Its pelvic girdle is the most complete one ever found from the Cretaceous Period.2

It lived in a shallow sea with an oxygen-poor seafloor, where cold seeps supported many invertebrates like ammonites and brachiopods.1

Ishusho ya Keilhauia yakozwe na AI — Ishusho yakozwe na AI yerekana uko Keilhauia 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: Keilhauia
Yiswe na: Delsett et al. 20173
Itsinda: Iktiyozore
Umuryango / ishami: Ophthalmosauridae3
Ishyirwa mu byiciro: Ichthyosauria > Ichthyosauromorpha3
Imyaka y'amabuye: imyaka miliyoni 143 kugeza 137 (Berriasian)3
Inzego z'amabuye: Agardhfjellet3
Ibihugu: Svalbard3
Ibisigazwa byanditswe: 1 muri The Paleobiology Database3
Ivumburwa: The first fossil of Keilhauia was found in 2010 by the Spitsbergen Mesozoic Research Group on Svalbard, Norway. Scientists named it in 2017 after the Norwegian geologist Baltazar Mathias Keilhau.1
Biracyagibwaho impaka: Scientists are unsure exactly how Keilhauia is related to other ichthyosaurs because its skull is not well preserved, so its family tree position is uncertain.1

Aho amakuru yakuwe

Keilhauia (en.wikipedia.org)
A New Ophthalmosaurid (Ichthyosauria) from Svalbard, Norway, and Evolution of the Ichthyopterygian Pelvic Girdle (eprints.soton.ac.uk)
Keilhauia in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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