Spitrasaurus

Igama lithetha: “Spitsbergen Travel lizard, after the travel company Spitra that supported the research”1

Yayitya: InyamaIiplesiosauriiJurassic yamva ukuya ku-iCretaceous yokuqalaNgokwenene ayisiyo dayinaso

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

Inyani emnandi: esi sirhubuluzi saselwandle sasiqubha ngelixa iidayinaso zazihamba emhlabeni. Wonke umntu uzibiza ngokuba ziidayinaso, kodwa zazilisebe elahlukileyo lezirhubuluzi.

Yaphila

149 ukuya ku-143 izigidi zeminyaka eyadlulayo2

iJurassic yamva ukuya ku-iCretaceous yokuqala

Iifosili zifunyenwe:

Janusfjellet, Spitsbergen, Svalbard, Norway1

Esona santya siphezulu

malunga ne-27 km/h (17 mph)

Ukuqubha, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayikhawuleza kangakanani?

Umntu ohambayo malunga ne-5 km/h (3 mph)

Umntwana ekhwele ibhayisikile malunga ne-12 km/h (7 mph)

Spitrasaurus malunga ne-27 km/h (17 mph)

Ihashe elibaleka ngamandla malunga ne-65 km/h (40 mph)

Ingwenkala malunga ne-100 km/h (62 mph)

izinto ezimnandi

Iinyani ezimnandi

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

Umfanekiso owenziwe yi-AI: Spitrasaurus — Umfanekiso owenziwe yi-AI obonisa indlela Spitrasaurus esenokuba wayekhangeleka ngayo, wenziwe yikhompyutha ngokwento eyaziwa zizazinzulu. Kukuqikelela nje: esona silwanyana sinokuba sasikhangeleka ngenye indlela, kwaye akukho mntu waziyo imibala yaso yokwenyani.

Kwiingcali zeedayinaso

Igama lenzululwazi: Spitrasaurus
Inikwe igama ngu:: Knutsen et al. 20122
Iqela: Iiplesiosauri
Usapho / iclade: Cryptoclididae2
Ukuhlelwa: Plesiosauria > Sauropterygia2
Ubudala bamatye: 149 ukuya ku-143 izigidi zeminyaka (Tithonian)2
Izakhiwo zamatye: Agardhfjellet2
Amazwe: iNorway2
Iirekhodi zeefosili: 2 kwi-Paleobiology Database2
Ukufunyanwa: 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
Kusaxoxwa ngayo: 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

Apho iinyani zivela khona

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): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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