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Riojasaurus

Il num vul dir: “lizard from La Rioja”1

Mangiava: PlantasCuliezs lungsTriassic tardiv

Riojasaurus was a huge, plant-eating dinosaur with a long neck and a heavy body. It lived during the Late Triassic period in what is now Argentina. It probably walked slowly on all four legs, munching on leaves with its leaf-shaped teeth.1

Viveva

avant 227 fin 206 milliuns onns4

Triassic tardiv

Fossils chattads en

La Rioja Province, Argentina (Los Colorados Formation)1 2

Lunghezza

6,6 fin 10 m (22 fin 33 ft)1

Paisa

800 kg fin 3 tonnas (1 800 fin 6 600 lb)1

Autezza

5 m (16 ft)3

Spertadad maximala

var 26 km/h (16 mph)

Currer, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant aut era el?

Quant grev era el?

uschè grev sco 2 autos

uschè lung sco 2 autos parcads in suenter l'auteruschè lung sco 56 bananas ina suenter l'autrauschè grev sco 150 chaunsuschè grev sco 600 melunasuschè grev sco 4 classas da scola entirasuschè grev sco 7 urs polarsuschè aut ch'el pudeva guardar en ina fanestra al 2. plaunpudess currer 100 meters en 14 secundas (il pli spert uman dovra 9,6)

Quant grond era Riojasaurus 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)

Riojasaurus var 26 km/h (16 mph)

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

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Riojasaurus had very dense and massive leg bones, making it heavy and sturdy for an early sauropodomorph.1

Unlike most early relatives, Riojasaurus had four sacral vertebrae in its hip area instead of three, which helped support its weight.1

Its neck bones were longer than those of other sauropodomorphs found in the same formation, making its neck especially long.1

The first Riojasaurus skeleton found had no skull. A well-preserved skull was later discovered in 1987 and described in 1995.1

Some scientists think Riojasaurus may have been active at short intervals throughout the day and night, based on the shape of its eye bones (scleral rings).1

Riojasaurus is the only known riojasaurid dinosaur from South America, and it may be closely related to Melanorosaurus from southern Africa.1

Its front and hind limbs were nearly the same length, which is a clue that it walked on all fours and could not rear up on its back legs.1

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

tias dumondas

Las dumondas las pli frequentas davart Riojasaurus

?How big was Riojasaurus?

Riojasaurus was about 6.6 metres (21.7 feet) long and weighed around 800 kilograms (1,764 pounds). Some large individuals may have reached 10 metres (32.8 feet) long and weighed 3 metric tons (3.3 short tons).1

?What did Riojasaurus eat?

Riojasaurus was a herbivore that ate plants. Its leaf-shaped, serrated teeth were used for grazing on soft vegetation like gymnosperms, and it may have swallowed stones (gastroliths) to help grind food in its stomach.1 3

?Could Riojasaurus walk on two legs?

No, Riojasaurus probably walked on all four legs. Its front and hind limbs were nearly the same length, and its leg bones were dense and massive, suggesting it moved slowly on all fours and could not rear up on its back legs.1

?When did Riojasaurus live?

Riojasaurus lived during the Late Triassic Period, about 225 to 213 million years ago. Its fossils have been found in the Los Colorados Formation in Argentina.1

?Is Riojasaurus a dinosaur?

Yes, Riojasaurus is a dinosaur. It is a herbivorous sauropodomorph dinosaur from the Late Triassic of Argentina.1

?Did Riojasaurus have feathers?

No, there is no evidence that Riojasaurus had feathers. Its fossils show only scales and bones, and it is not known to have any feather-like structures.1

Per experts da dinos

Num scientific: Riojasaurus
Numnà da: Bonaparte 19694
Gruppa: Culiezs lungs
Famiglia / clada: Riojasauridae4
Classificaziun: Sauropodomorpha4
Vegliadetgna da la crappa: 227 fin 206 milliuns onns (Norian)4
Formaziuns da crap: Los Colorados4
Pajais: Argentinia4
Chats da fossils: 2 en The Paleobiology Database4
Era enconuschent sco: Strenusaurus (nums pli vegls che valan ussa sco il medem animal)4
Scuverta: Riojasaurus was named by Argentine paleontologist José Bonaparte in 1969. The first skeleton (holotype PVL 3808) was found in 1966 in the Los Colorados Formation of La Rioja, Argentina. Later, many more skeletons and a skull were discovered.1 4
Anc discutà: Scientists disagree on whether Riojasaurus was completely quadrupedal or could sometimes walk on two legs. The hand and shoulder bones suggest it might have been able to move in different ways.1

Danunder che vegnan ils fatgs

Riojasaurus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Riojasaurus | Zoology | Research Starters | EBSCOhost (ebsco.com)
Riojasaurus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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