Carta da dino nr. 1703 da 2 027

Spitrasaurus

Il num vul dir: “Spitsbergen Travel lizard, after the travel company Spitra that supported the research”1

Mangiava: CharnPlesiosaursGiurassic tardiv fin Cretacic temprivTecnicamain betg in dinosaur

Spitrasaurus was a long-necked marine reptile that swam in the Jurassic seas. It had an incredibly long neck with at least 60 vertebrae, more than most other plesiosaurs. It lived in the cold waters near what is now Svalbard, Norway.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 149 fin 143 milliuns onns2

Giurassic tardiv fin Cretacic tempriv

Fossils chattads en

Janusfjellet, Spitsbergen, Svalbard, Norway1

Spertadad maximala

var 27 km/h (17 mph)

Nudar, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

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)

Spitrasaurus var 27 km/h (17 mph)

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

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Spitrasaurus had at least 60 neck bones (cervical vertebrae), which is more than most other Jurassic plesiosaurs. Only some Cretaceous elasmosaurids had more.1

The neck bones of Spitrasaurus had a prominent ridge on the side, a feature not seen in many related plesiosaurs like Djupedalia or Kimmerosaurus.1

Two species of Spitrasaurus have been named: S. wensaasi and S. larseni. They differ in the shape of their neck bones and ribs.1

The first specimen of Spitrasaurus (S. wensaasi) was a juvenile, because its vertebrae were not fully fused. It was preserved lying on its back in black mudstone.1

Spitrasaurus lived about 149 to 143 million years ago, during the Tithonian stage of the Jurassic period. Its fossils were found in the Slottsmøya Member of the Agardhfjellet Formation.2 1

The name Spitrasaurus honors Spitsbergen Travel, a local travel company that helped support the research.1

Maletg da Spitrasaurus fatg cun IA — In maletg fatg cun IA che mussa co Spitrasaurus 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.

Per experts da dinos

Num scientific: Spitrasaurus
Numnà da: Knutsen et al. 20122
Gruppa: Plesiosaurs
Famiglia / clada: Cryptoclididae2
Classificaziun: Plesiosauria > Sauropterygia2
Vegliadetgna da la crappa: 149 fin 143 milliuns onns (Tithonian)2
Formaziuns da crap: Agardhfjellet2
Pajais: Norvegia2
Chats da fossils: 2 en The Paleobiology Database2
Scuverta: Spitrasaurus was named in 2012 by Espen Knutsen, Patrick Druckenmiller, and Jørn Hurum. The fossils were found on the north slope of Janusfjellet mountain on Spitsbergen, Svalbard, Norway.2 1
Anc discutà: Scientists are not sure exactly how long Spitrasaurus was, because no complete skeleton has been found. The known specimens are missing parts of the tail and skull.1

Danunder che vegnan ils fatgs

Two new species of long-necked plesiosaurians (Reptilia: Sauropterygia) from the Upper Jurassic (Middle Volgian) Agardhfjellet Formation of central Spitsbergen (geologi.no)
Spitrasaurus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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