Dinokaart nr. 0927 van 2 027

Jormungandr

Naam beteken: “named after Jǫrmungandr, the giant sea serpent from Norse mythology”1

Het geëet: VleisMosasourusseLaat KrytTegnies nie 'n dinosourus nie

Jormungandr was a huge, swimming lizard that lived in the sea during the time of dinosaurs. It had a long body, strong jaws, and sharp teeth for catching fish and other sea creatures. This marine reptile was not a dinosaur, but a fierce predator of the ancient oceans.1

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

84 tot 72 miljoen jaar gelede2

Laat Kryt

Fossiele gevind in

Cavalier County, North Dakota, USA2 1

Lengte

5,4 tot 7,3 m (18 tot 24 ft)1

Topspoed

omtrent 37 km/h (23 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 7 honde van neus tot stertso lank soos 41 piesangs punt aan puntkon die lengte van 'n groot swembad (50 m) in 4,9 sekondes swem

Hoe groot was Jormungandr 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)

Jormungandr omtrent 37 km/h (23 mph)

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

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

cool goed

Prettige feite

Jormungandr's skull was about 72 centimeters (28 inches) long, and its lower jaw measured 80.8 centimeters (31.8 inches).1

The fossil was discovered in 2015 by a fossil collector named Deborah Shepherd near Walhalla, North Dakota.1

Jormungandr lived about 80 million years ago, during the Late Cretaceous period.1

The fourth dorsal vertebra of Jormungandr has marks that scientists think are bite marks from another mosasaur, possibly from a fight or scavenging.1

Jormungandr shares features with both primitive mosasaurs like Clidastes and more advanced ones like Mosasaurus, making it a 'missing link' in mosasaur evolution.1

The species name walhallaensis comes from the town of Walhalla, which is named after Valhalla, the hall of slain warriors in Norse mythology.1

KI-prent van Jormungandr — 'n KI-prent van hoe Jormungandr 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.

Mite-breker

Mite: Some people think Jormungandr was a dinosaur.

Waarheid: Jormungandr was a mosasaur, a type of marine lizard, not a dinosaur. Mosasaurs are reptiles but belong to a different group than dinosaurs.1

Vir dino-kenners

Wetenskaplike naam: Jormungandr
Benoem deur: Zietlow et al. 20232
Groep: Mosasourusse
Familie / klade: Mosasauridae2
Klassifikasie: Mosasauroidea2
Ouderdom van die rotse: 84 tot 72 miljoen jaar (Campanian)2
Rotsformasies: Pierre Shale2
Lande: VSA2
Fossielrekords: 1 in The Paleobiology Database2
Ontdekking: The only known fossil of Jormungandr was found in 2015 by fossil collector Deborah Shepherd near Walhalla, North Dakota. It was later described and named by paleontologists Amelia Zietlow, Clint Boyd, and Nathan Van Vranken in 2023.1
Steeds omstrede: Scientists are not sure if Jormungandr is a distinct genus or just a new species of Clidastes. Some researchers think it might be renamed Clidastes walhallaensis in the future.1

Waar die feite vandaan kom

Jormungandr walhallaensis (en.wikipedia.org)
Jormungandr in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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