Ikarita ya dinozore nimero 0211 muri 2 027

Avalonnectes

Izina risobanura: “Avalon swimmer”1

Yaryaga: InyamaPlesiyozoreJurasike ya mbereMu by'ukuri si dinozore

Avalonnectes was a small, early plesiosaur that swam in the seas near what is now England, about 200 million years ago. It had a short body and four flippers, and it was one of the very first plesiosaurs to appear after the Triassic,Jurassic extinction.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 201 kugeza 2004

Jurasike ya mbere

Ibisigazwa byabonetse muri

Street, Somerset, England, United Kingdom3

Umuvuduko wo hejuru

nka 27 km/h (17 mph)

Koga, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yihutaga ite?

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

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

Avalonnectes 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

Avalonnectes had only 18 or 19 dorsal vertebrae, which is a very low number for a plesiosaur.1

Its skull was only about 180 mm long, making it one of the smallest plesiosaurs of its time.1

Avalonnectes lived in the earliest Jurassic, just after the Triassic,Jurassic extinction event, about 199.6 to 198 million years ago.3

The name Avalonnectes comes from Avalon, the legendary island of King Arthur, which is linked to Glastonbury near where the fossils were found.1

Avalonnectes is known from two partial skeletons, including the holotype NHMUK 14550, which has part of the skull and much of the body.3

It belonged to a group called Rhomaleosauridae, which were early plesiosaurs with short necks and large heads.2

Ishusho ya Avalonnectes yakozwe na AI — Ishusho yakozwe na AI yerekana uko Avalonnectes 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: Avalonnectes
Yiswe na: Benson et al. 20124
Itsinda: Plesiyozore
Umuryango / ishami: Rhomaleosauridae4
Ishyirwa mu byiciro: Plesiosauria > Sauropterygia4
Imyaka y'amabuye: imyaka miliyoni 201 kugeza 200 (Hettangian)4
Inzego z'amabuye: Blue Lias4
Ibihugu: Ubwongereza4
Ibisigazwa byanditswe: 1 muri The Paleobiology Database4
Ivumburwa: Avalonnectes was named in 2012 by Roger Benson and colleagues based on fossils collected in the 19th century from Street, Somerset, England. The species name arturi honors Arthur Cruickshank, a scientist who studied early plesiosaurs.1

Aho amakuru yakuwe

High Diversity, Low Disparity and Small Body Size in Plesiosaurs (Reptilia, Sauropterygia) from the Triassic, Jurassic Boundary | PLOS One (journals.plos.org)
PBDB Taxon (paleobiodb.org)
Avalonnectes (en.wikipedia.org)
Avalonnectes in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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