Jucha

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

Het geëet: VleisPlesiosourusseVroeë KrytTegnies nie 'n dinosourus nie

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

Prettige feit: hierdie seereptiel het geswem terwyl dinosourusse op land geloop het. Almal noem hulle dino's, maar hulle was 'n ander tak van die reptiele.

Het geleef

133 tot 126 miljoen jaar gelede3

Vroeë Kryt

Fossiele gevind in

Klimovka Formation near Ulyanovsk, European Russia1 3

Lengte

5 m (16 ft)1

Topspoed

omtrent 28 km/h (17 mph)

Swem, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

so lank soos 5 honde van neus tot stertso lank soos 28 piesangs punt aan puntkon die lengte van 'n groot swembad (50 m) in 6,4 sekondes swem

Hoe groot was Jucha vergeleke met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of êrens heen gestuur nie.

Hoe vinnig was dit?

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

Jucha omtrent 28 km/h (17 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

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

KI-prent van Jucha — 'n KI-prent van hoe Jucha dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.

Vir dino-kenners

Wetenskaplike naam: Jucha
Benoem deur: Fischer et al. 20203
Groep: Plesiosourusse
Familie / klade: Elasmosauridae3
Klassifikasie: Plesiosauria > Elasmosauridae > Sauropterygia3
Ouderdom van die rotse: 133 tot 126 miljoen jaar (Hauterivian)3
Rotsformasies: Klimovka3
Lande: Rusland3
Fossielrekords: 1 in The Paleobiology Database3
Ontdekking: 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
Steeds omstrede: 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

Waar die feite vandaan kom

Jucha (en.wikipedia.org)
Author postprint version (orbi.uliege.be)
Jucha in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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