Ikarita ya dinozore nimero 1137 muri 2 027

Marambionectes

Izina risobanura: “Marambio Island swimmer”1

Yaryaga: InyamaPlesiyozoreKiretase ya nyumaMu by'ukuri si dinozore

Marambionectes was a long-necked marine reptile that swam in the seas near Antarctica about 70 million years ago. It was not a dinosaur, but a fierce hunter that used its flippers to glide through the water.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

Antarctica, on Marambio (Seymour) Island in the López de Bertodano Formation1 3

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)

Marambionectes 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

Marambionectes had 48 neck vertebrae, and the 5th to 29th of these had special side keels, a feature not seen in other elasmosaurids.2

Its lower jaw had three tooth sockets at the front and a wide groove, which helped scientists link it to a group called aristonectines.2

The fossil skeleton was found in 2018 and includes parts of the skull, many vertebrae, ribs, and limb bones, all from an adult animal.1

Scientists think Marambionectes was closely related to the aristonectines, a group of elasmosaurids with short necks and big heads.1 2

The name honors Omar J. Molina, an Argentinian fossil preparator who worked in Antarctica.1

Ishusho ya Marambionectes yakozwe na AI — Ishusho yakozwe na AI yerekana uko Marambionectes 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 all plesiosaurs were dinosaurs.

Ukuri: Plesiosaurs like Marambionectes were marine reptiles, not dinosaurs. Dinosaurs lived on land and had different body features.1

Ku bazobereye muri dinozore

Izina rya siyansi: Marambionectes
Yiswe na: O’Gorman et al. 20243
Itsinda: Plesiyozore
Umuryango / ishami: Elasmosauridae3
Ishyirwa mu byiciro: Plesiosauria > Elasmosauridae > Sauropterygia3
Imyaka y'amabuye: imyaka miliyoni 72 kugeza 66 (Maastrichtian)3
Inzego z'amabuye: López de Bertodano3
Ibihugu: Antaragitika3
Ibisigazwa byanditswe: 1 muri The Paleobiology Database3
Ivumburwa: The fossil was found in 2018 on Marambio Island, Antarctica, and was named by O'Gorman and colleagues in 2024.1 3
Biracyagibwaho impaka: Scientists are still debating exactly how Marambionectes is related to other elasmosaurids, especially whether it belongs inside or just outside the aristonectine group.1 2

Aho amakuru yakuwe

Marambionectes (en.wikipedia.org)
Description: A new elasmosaurid (Plesiosauria :: NVK CVTI SR (ersearch2.cvtisr.sk)
Marambionectes in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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