Jucha

Erinnya litegeeza: “named after Jucha, a snake-like demon from local folklore who can take off her head, referring to the missing skull”1 2

Yalyanga: EnnyamaPulesiyosawuluEntandikwa ya KuretasiMu butuufu si dayinoso

Jucha was a long-necked marine reptile that swam in the seas of Early Cretaceous Russia. It was an early elasmosaur, a type of plesiosaur with a very long neck. Jucha is one of the oldest elasmosaurs ever found.1 3

Ekyewuunyisa: ekyewalula kino eky'omu nnyanja kyawuganga nga dayinoso zitambula ku lukalu. Buli muntu abiyita dayinoso, naye byali ttabi ddala ery'ebyewalula.

Yabeerawo

emyaka obukadde 133 okutuuka ku 126 emabega3

Entandikwa ya Kuretasi

Ebisigalira byazuulibwa mu

Klimovka Formation near Ulyanovsk, European Russia1 3

Obuwanvu

5 m (16 ft)1

Sipiidi esinga

nga 28 km/h (17 mph)

Okuwuga, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

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obuwanvu ng'embwa 5, ennyindo ku mukiraobuwanvu ng'amenvu 28 nga gaddiriŋŋanayandiwuze obuwanvu bw'ekidiba ekinene (50 m) mu sikonda 6.4

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Yali wa mbiro kwenkana wa?

Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Jucha nga 28 km/h (17 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

Jucha lived about 130 million years ago, during the Early Cretaceous period.1

The only known skeleton of Jucha was discovered in 2007 near the Slantsevy Rudnik village in Russia.1 2

Jucha's neck bones were already getting longer, showing an early step toward the super-long necks of later elasmosaurs.2

The fossil bones were covered in a crust of pyrite, also called fool's gold, which gave the species its name 'squalea' meaning coated.1 2

Jucha lacked some features that later elasmosaurs had, like a heart-shaped hole in the chest bone and a bar across the shoulder blades.2

The name Jucha comes from a Turkic demon that can turn into a dragon and remove its own head, because the fossil skull was missing.1 2

Ekifaananyi kya Jucha ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Jucha
Yatuumibwa: Fischer et al. 20203
Ekibinja: Pulesiyosawulu
Ekika / ekibinja: Elasmosauridae3
Engabanya: Plesiosauria > Elasmosauridae > Sauropterygia3
Emyaka gy'enjazi: emyaka obukadde 133 okutuuka ku 126 (Hauterivian)3
Ensengeka z'enjazi: Klimovka3
Ensi: Rwasha3
Ebisigalira ebyazuulibwa: 1 mu The Paleobiology Database3
Okuzuulibwa: Jucha was named in 2020 by Fischer and colleagues. The holotype skeleton was found in 2007 by a field crew led by G. N. Uspensky in the Klimovka Formation of European Russia.1 2
Kikyakubaganyizibwako ebirowoozo: Scientists are not sure exactly how the necks of elasmosaurs evolved. Jucha shows an early attempt at neck lengthening, but the pattern of elongation and shortening in different species is still debated.2

Ebituufu gye biva

Jucha (en.wikipedia.org)
Author postprint version (orbi.uliege.be)
Jucha in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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