Ikarita ya dinozore nimero 0670 muri 2 027

Fresnosaurus

Izina risobanura: “Fresno lizard, named after Fresno County in California”1

Yaryaga: InyamaPlesiyozoreKiretase ya nyumaMu by'ukuri si dinozore

Fresnosaurus was a huge swimming reptile with a very long neck and flippers instead of legs. It lived in the sea near California during the time of the dinosaurs, but it was not a dinosaur. It probably used its long neck to sneak up on fish and other small sea creatures.1 3

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 663

Kiretase ya nyuma

Ibisigazwa byabonetse muri

Fresno County, California, USA, in the Moreno Formation1 2

Uburebure

kugeza kuri 9 m (30 ft)1

Umuvuduko wo hejuru

nka 23 km/h (14 mph)

Koga, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

ndende nk'imodoka 2 ziparitse ku murongondende nk'imineke 50 ikurikiranyeyashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 7,8

Fresnosaurus 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)

Fresnosaurus nka 23 km/h (14 mph)

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

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

utuntu twiza cyane

Utuntu dushimishije

Fresnosaurus lived about 70 to 66 million years ago, right at the end of the Age of Dinosaurs.1

The only known fossil is from a young animal, so scientists think adults might have been even bigger than 9 meters (30 feet).2

Its name honors Fresno County, and the species name 'drescheri' honors Arthur Drescher, who likely helped find the fossil.1

Fresnosaurus belonged to a group called elasmosaurids, famous for their extremely long necks and paddle-like flippers.1 3

The fossil includes bones like the coracoids (shoulder bones), humerus (upper arm bone), pelvic girdle, and femora (thigh bones), but no skull has been found.2

Scientists recently found that some extra bones labeled as Fresnosaurus might actually belong to a different, related plesiosaur called an aristonectine.2

Ishusho ya Fresnosaurus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Fresnosaurus 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.

Gusenya ibinyoma

Ibivugwa: Some people think Fresnosaurus was a dinosaur because it lived with dinosaurs and is often shown in dinosaur books.

Ukuri: Fresnosaurus was a plesiosaur, a marine reptile, not a dinosaur. Dinosaurs lived on land and had different body shapes.1 3

Ku bazobereye muri dinozore

Izina rya siyansi: Fresnosaurus
Yiswe na: Welles 19433
Itsinda: Plesiyozore
Umuryango / ishami: Elasmosauridae3
Ishyirwa mu byiciro: Plesiosauria > Elasmosauridae > Sauropterygia3
Imyaka y'amabuye: imyaka miliyoni 72 kugeza 66 (Maastrichtian)3
Inzego z'amabuye: Moreno3
Ibihugu: Amerika3
Ibisigazwa byanditswe: 1 muri The Paleobiology Database3
Ivumburwa: Fresnosaurus was first described by Samuel Paul Welles in 1943, based on a fossil found in the Moreno Formation of California. The fossil was originally stored at the California Institute of Technology and is now at the Natural History Museum of Los Angeles County.1 2
Biracyagibwaho impaka: Scientists are still debating whether Fresnosaurus is a valid, separate genus or if it might be the same as another elasmosaurid, because the only fossil is incomplete and from a juvenile.2

Aho amakuru yakuwe

Fresnosaurus (en.wikipedia.org)
Reappraisal of Fresnosaurus drescheri (Plesiosauria; Elasmosauridae) from the Maastrichtian Moreno Formation, California, USA - ScienceDirect (sciencedirect.com)
Fresnosaurus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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