Kartu dino No. 0227 ci 2 027

Bajadasaurus

Tur bi mooy: “downhill lizard, from the Spanish word bajada (downhill) and the Greek sauros (lizard)”1

Lekkoon: GàncaxBaat yu guddKretase bu jëkk

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

Dundoon

am na 139 ba 133 milyoŋ at4

Kretase bu jëkk

Fosil yu ñu gis ci

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

Guddaay

10 ba 12 m (33 ba 39 ft)3

Diisaay

4 toon ba 6 toon (8 800 ba 13 200 lb)2

Kawewaay

2,5 ba 3 m (8,2 ba 9,8 ft)2

Gaawaay bi gën a kawe

lu tollu ci 19 km/h (12 mph)

Daw, jortu

Kañ la dundoon?

Triyaas

Jurasik

Kretase

Am na 252 milyoŋ at20114566, asteroyid bi

Naka la réyoon?

Naka la guddoon?

Naka la kawewoon?

Naka la diisoon?

diis ni 4 oto

gudd ni 2,5 oto yu ñu taxawal ci benn rëddgudd ni 67 banaana yu ñu topp-toppalelu tollu ci diisaayu ñeydiis ni 1200 xaaldiis ni 8 klaas yu mat yu xale yu lekkooldiis ni 13 uurs yu weexmënoon na daw 100 meetar ci 19 segond (nit ki gën a gaaw dafay soxla 9,6)

Naka la Bajadasaurus réyoon, bu ñu ko méngalee ak YAW?

Ay kalkil rekk ci sa navigatëer. Dara du ñu denc, dara du ñu yónne fenn.

Naka la gaawoon?

Nit kuy dox lu tollu ci 5 km/h (3 mph)

Xale bu nekk ci welo lu tollu ci 12 km/h (7 mph)

Bajadasaurus lu tollu ci 19 km/h (12 mph)

Fas buy daw bu gaaw lu tollu ci 65 km/h (40 mph)

Segg bu gaaw lu tollu ci 100 km/h (62 mph)

yëf yu neex

Xibaar yu neex

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

Nataalu Bajadasaurus bu ñu def ak IA — Nataal bu IA def la, muy wone ni Bajadasaurus mën a meloon, ordinatëer moo ko def ci li boroom xam-xam yi xam. Jortu kese la: rab bi ci dëgg mën na meloon neneen, te kenn xamul ay kulëëram yu dëgg.

yeen a laaj

Laaj yi ñu gën a laaj ci 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

Ku tas léeb yu dul dëgg

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

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

Ngir ñi xam dino lool

Turu xam-xam: Bajadasaurus
Ku ko tudde: Gallina et al. 20194
Kurél: Baat yu gudd
Njaboot / klad: Dicraeosauridae4
Klasifikasiyoŋ: Sauropodomorpha > Sauropoda > Diplodocoidea4
Màggaayu doj yi: 139 ba 133 milyoŋ at (Berriasian / Valanginian)4
Formasiyoŋi doj: Bajada Colorada4
Réew yi: Arsantin4
Fosil yu ñu gis: 1 ci The Paleobiology Database4
Gisees: 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
Ñu ngi koy werante ba tey: Scientists are still debating whether the long neck spines were used mainly for defense, display, or something else.1

Fa xibaar yi jóge

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): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

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