Ikarita ya dinozore nimero 1601 muri 2 027

Scalamagnus

Izina risobanura: “large staircase, referring to the Grand Staircase-Escalante National Monument where it was found”1

Yaryaga: InyamaPlesiyozoreKiretase ya nyumaMu by'ukuri si dinozore

Scalamagnus was a small, fast-swimming marine reptile that lived in the warm, shallow sea that once covered North America. It had a long snout full of sharp teeth and used its four flippers to zoom through the water after fish and squid.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 94 kugeza 902

Kiretase ya nyuma

Ibisigazwa byabonetse muri

Utah, USA, in the Tropic Shale formation1 2

Uburebure

3,2 m (10 ft)1

Umuvuduko wo hejuru

nka 28 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 3 zikurikiranyendende nk'imineke 18 ikurikiranyeyashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 6,4

Scalamagnus 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)

Scalamagnus nka 28 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

Scalamagnus was originally thought to be a species of Dolichorhynchops, but scientists later gave it its own name in 2023.1

One Scalamagnus skeleton was found with 289 stomach stones (gastroliths), which is very unusual for this group of plesiosaurs.1

The stomach stones weighed about 518 grams in total, and most were smaller than 2 grams.1

It lived about 93 to 91 million years ago, during the early Turonian stage of the Late Cretaceous.1

Scalamagnus was a polycotylid plesiosaur, a group known for having short necks and large heads, unlike the long-necked plesiosaurs.1

The name Scalamagnus honors the Grand Staircase-Escalante National Monument in Utah, where its fossils were dug up.1

Ishusho ya Scalamagnus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Scalamagnus 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: Scalamagnus
Yiswe na: Clark et al. 20242
Itsinda: Plesiyozore
Umuryango / ishami: Polycotylidae2
Ishyirwa mu byiciro: Plesiosauria > Sauropterygia2
Imyaka y'amabuye: imyaka miliyoni 94 kugeza 90 (Turonian)2
Inzego z'amabuye: Tropic Shale2
Ibihugu: Amerika2
Ibisigazwa byanditswe: 2 muri The Paleobiology Database2
Ivumburwa: The first fossils were found between 2003 and 2005 by the Museum of Northern Arizona in the Tropic Shale of Utah. It was named Scalamagnus tropicensis in 2023 by Robert Clark, Robin O'Keefe, and Sara Slack.1 2
Biracyagibwaho impaka: Scientists are not sure why Scalamagnus had so many stomach stones, since most other polycotylids did not have them.1

Aho amakuru yakuwe

Scalamagnus (en.wikipedia.org)
Scalamagnus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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