Carta da dino nr. 0927 da 2 027

Jormungandr

Il num vul dir: “named after Jǫrmungandr, the giant sea serpent from Norse mythology”1

Mangiava: CharnMosasaursCretacic tardivTecnicamain betg in dinosaur

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

Fatg divertent: quest reptil da mar nudava, entant ch'ils dinosaurs chaminavan sin terra. Tuts als numnan dinos, ma els eran in'autra rama dals reptils.

Viveva

avant 84 fin 72 milliuns onns2

Cretacic tardiv

Fossils chattads en

Cavalier County, North Dakota, USA2 1

Lunghezza

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

Spertadad maximala

var 37 km/h (23 mph)

Nudar, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

uschè lung sco 7 chauns dal nas a la cuauschè lung sco 41 bananas ina suenter l'autrapudess nudar la lunghezza d'ina gronda piscina (50 m) en 4,9 secundas

Quant grond era Jormungandr cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Jormungandr var 37 km/h (23 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Jormungandr fatg cun IA — In maletg fatg cun IA che mussa co Jormungandr pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

Chatschader da mitus

Mitus: Some people think Jormungandr was a dinosaur.

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

Per experts da dinos

Num scientific: Jormungandr
Numnà da: Zietlow et al. 20232
Gruppa: Mosasaurs
Famiglia / clada: Mosasauridae2
Classificaziun: Mosasauroidea2
Vegliadetgna da la crappa: 84 fin 72 milliuns onns (Campanian)2
Formaziuns da crap: Pierre Shale2
Pajais: USA2
Chats da fossils: 1 en The Paleobiology Database2
Scuverta: 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
Anc discutà: 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

Danunder che vegnan ils fatgs

Jormungandr walhallaensis (en.wikipedia.org)
Jormungandr in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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