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Ikhadi ledayinaso No. 0227 kwe-2 027

Bajadasaurus

Igama lithetha: “downhill lizard, from the Spanish word bajada (downhill) and the Greek sauros (lizard)”1

Yayitya: IzityaloIintamo-ndeiCretaceous yokuqala

Bajadasaurus was a small, long-necked dinosaur that lived in what is now Patagonia, Argentina. It had a row of super long, forward-pointing spines on its neck that probably helped protect it from hungry predators. This plant-eater was about the size of an Asian elephant, small for a sauropod.2 1

Yaphila

139 ukuya ku-133 izigidi zeminyaka eyadlulayo4

iCretaceous yokuqala

Iifosili zifunyenwe:

Bajada Colorada locality, 40 km south of Picún Leufú, Neuquén Province, Patagonia, Argentina1 2

Ubude

10 ukuya ku-12 m (33 ukuya ku-39 ft)3

Ubunzima

4 iitoni ukuya ku-6 iitoni (8,800 ukuya ku-13,200 lb)2

Ukuphakama

2.5 ukuya ku-3 m (8.2 ukuya ku-9.8 ft)2

Esona santya siphezulu

malunga ne-19 km/h (12 mph)

Ukubaleka, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Yayiphakame kangakanani?

Yayinzima kangakanani?

inzima njengeemoto ezingama-4

inde njengeemoto ezingama-2.5 zipakwe zilandelelanainde njengeebhanana ezingama-67 zilandelelanamalunga nobunzima bendlovuinzima njengamavatala angama-1200inzima njengamagumbi okufundela apheleleyo abantwana angama-8inzima njengeebhere ezimhlophe ezingama-13ibinokubaleka iimitha ezili-100 ngemizuzwana engama-19 (oyena mntu ukhawulezayo udinga i-9,6)

Bajadasaurus wayemkhulu kangakanani xa ethelekiswa NAWE?

Yimathematika nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwe naphi na.

Yayikhawuleza kangakanani?

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

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

Bajadasaurus malunga ne-19 km/h (12 mph)

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

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

izinto ezimnandi

Iinyani ezimnandi

Bajadasaurus had a pair of extremely long, forward-curving spines on each neck vertebra, forming a kind of spiky fence.1

Its skull is one of the most complete ever found for a dicraeosaurid, a group of sauropods with short necks.1

The dinosaur had about 48 pencil-shaped teeth, all at the front of its jaws.2

Its eye openings were visible from above, which may have helped it look forward while eating low plants.2

Bajadasaurus lived around 139 to 133 million years ago, during the Early Cretaceous period.3

The only known specimen was found in 2010 by paleontologist Pablo Gallina, preserved as a single block of rock.2

It shared its home with other sauropods like Leinkupal and Ninjatitan, as well as meat-eating theropods.2

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

ubuzile

Eyona mibuzo ibuzwa kakhulu: Bajadasaurus

?How big was Bajadasaurus?

It was about 9 to 10 metres long, which is small for a sauropod. It was roughly the size of a modern Asian elephant.2

?What did Bajadasaurus eat?

It was a plant-eater, or herbivore. It had about 48 pencil-shaped teeth at the front of its jaws for stripping leaves.2

?Why did Bajadasaurus have long spines?

Scientists think the long, forward-pointing spines on its neck were used for passive defense against predators, like a spiky fence. They might also have been for display.1 2

?When did Bajadasaurus live?

It lived during the Early Cretaceous period, about 145 to 132.9 million years ago.2

?Where was Bajadasaurus found?

Its fossils were found in Patagonia, Argentina, at a place called Bajada Colorada. The only specimen was discovered in 2010.2

?Is Bajadasaurus a dinosaur?

Yes, it is a dinosaur. It is a sauropod dinosaur from the group Dicraeosauridae.2

Inyaniso ngeentsomi

Intsomi: Some people think the long spines on Bajadasaurus's neck were used as a sail for cooling down.

Inyaniso: Scientists now believe the spines were a passive defense, like a spiky fence, to protect against predators.1

Kwiingcali zeedayinaso

Igama lenzululwazi: Bajadasaurus
Inikwe igama ngu:: Gallina et al. 20194
Iqela: Iintamo-nde
Usapho / iclade: Dicraeosauridae4
Ukuhlelwa: Sauropodomorpha > Sauropoda > Diplodocoidea4
Ubudala bamatye: 139 ukuya ku-133 izigidi zeminyaka (Berriasian / Valanginian)4
Izakhiwo zamatye: Bajada Colorada4
Amazwe: i-Argentina4
Iirekhodi zeefosili: 1 kwi-Paleobiology Database4
Ukufunyanwa: Bajadasaurus was named in 2019 by paleontologist Pablo Gallina and his team. The single fossil was found in 2010 at the Bajada Colorada site in Argentina.2 1
Kusaxoxwa ngayo: Scientists are still debating whether the long neck spines were used mainly for defense, display, or something else.1

Apho iinyani zivela khona

A new long-spined dinosaur from Patagonia sheds light on sauropod defense system | Scientific Reports (nature.com)
Bajadasaurus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Bajadasaurus in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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