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Spotprent van Lessemsaurus
Dinokaart nr. 1039 van 2 027

Lessemsaurus

Naam beteken: “Lessem's lizard, named after Don Lessem, founder of The Dinosaur Society”12
Het geëet: PlanteLangnekkeLaat Trias

Lessemsaurus was a giant plant-eater that stomped through what is now Argentina about 213 million years ago. It was one of the biggest animals of its time, with a long neck and a huge body. Scientists think it was an early relative of the famous long-necked sauropods like Brachiosaurus.13

Het geleef
227 tot 206 miljoen jaar gelede4
Laat Trias
Fossiele gevind in
Argentina (La Rioja Province), in the Los Colorados Formation13
Lengte
10 tot 12 m (33 tot 39 ft)1
Gewig
7 ton tot 10 ton (15 400 tot 22 000 lb)1
Hoogte
2,9 m (9,5 ft)
skatting
Topspoed
omtrent 16 km/h (10 mph)
Hardloop, skatting

Wanneer het dit geleef?

Trias
Jura
Kryt
252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

Lessemsaurus omtrent 12 m lank (39 ft)'n Grootmensfiets omtrent 1,8 m (5,9 ft)'n Motor omtrent 4,5 m (15 ft)'n Olifant, die grootste landdier vandag omtrent 6,5 m (21 ft)

Hoe hoog was dit?

'n Hondomtrent 0,5 m (1,6 ft)'n Perdomtrent 1,6 m (5,2 ft)Lessemsaurusomtrent 2,9 m hoog (9,5 ft)'n Olifantomtrent 3,2 m (10 ft)

skatting

Hoe swaar was dit?

so swaar soos 7 motors
so lank soos 2,5 motors in 'n ry geparkeerso lank soos 67 piesangs punt aan puntso swaar soos 1,5 olifanteso swaar soos 2000 waatlemoeneso swaar soos 12 hele skoolklasse vol kindersso swaar soos 22 ysberekon 100 meter in 22 sekondes hardloop (die vinnigste mens het 9,6 nodig)

Hoe groot was Lessemsaurus vergeleke met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of êrens heen gestuur nie.

Hoe vinnig was dit?

cool goed

Prettige feite

1

Lessemsaurus had very tall neural arches on its backbones, which made its spine look like a sail and helped support its heavy body.2

2

It was named after Don Lessem, a science writer who founded The Dinosaur Society, not after a place or a feature.12

3

Scientists think Lessemsaurus lived in groups, because the fossils of three individuals were found together.32

4

Its neck bones had a special shape with deep pits and ridges, which may have made its neck stronger and more flexible.2

5

Lessemsaurus was about as long as a school bus and weighed as much as two elephants.1

6

It lived during the Norian age of the Late Triassic, about 213 million years ago, when the first dinosaurs were just getting big.13

Deur KI gemaakKI-prent van Lessemsaurus
'n KI-prent van hoe Lessemsaurus dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.
julle het gevra

Mees gevraagde vrae oor Lessemsaurus

?How big was Lessemsaurus?

It was about 10 to 12 metres long and weighed over 7 metric tons, possibly up to 8 to 10 metric tons. That is about as long as a school bus and as heavy as two elephants.1

?What did Lessemsaurus eat?

Lessemsaurus was a plant-eater, just like other sauropodomorph dinosaurs. It ate leaves and other plants.1

?When did Lessemsaurus live?

It lived about 213 million years ago, during the Norian age of the Late Triassic.1

?Where was Lessemsaurus found?

Its fossils were found in the Los Colorados Formation in La Rioja Province, Argentina.1

?Is Lessemsaurus a dinosaur?

Yes, Lessemsaurus is a dinosaur. It is a sauropodiform dinosaur, an early relative of the long-necked sauropods.1

?How fast could Lessemsaurus run?

Scientists do not know exactly how fast it could run, but because it was a large, heavy quadruped, it probably moved slowly, like other big sauropodomorphs.1

Mite-breker

Mite: Some people think Lessemsaurus was a true sauropod like Brachiosaurus.

Waarheid: Scientists are not sure. Some studies put it as a very early sauropod, while others say it was a close relative but not a true sauropod.3

Vir dino-kenners

Wetenskaplike naam
Lessemsaurus
Benoem deur
Bonaparte 19994
Groep
Langnekke
Familie / klade
Lessemsauridae4
Klassifikasie
Sauropodomorpha > Sauropoda4
Ouderdom van die rotse
227 tot 206 miljoen jaar (Norian)4
Rotsformasies
Los Colorados4
Lande
Argentinië4
Fossielrekords
1 in The Paleobiology Database4
Ontdekking
Lessemsaurus was named by the famous paleontologist José Bonaparte in 1999. He found the fossils in Argentina and named the species L. sauropoides, which means 'like a sauropod'.12
Steeds omstrede
Scientists still debate whether Lessemsaurus was a true sauropod or a more primitive sauropodomorph, because its bones show a mix of features.3

Waar die feite vandaan kom

  1. Lessemsaurus (en.wikipedia.org)
  2. Abstract. EVOLUTION OF THE PRESACRAL VERTEBRAE OF THE SAUROPODOMORPHA. The presacral vertebrae of the pre-dinosaur Marasuchus and the prosauropods Riojasaurus and Plateosaurus are redescribed and discussed. A new genus and species, Lessemsaurus sauropoides, diagnosed by tall neural arches and infrapostzygapophyseal constriction in the posterior cervicals, is described; the vertebral morphology of the cetiosaurid sauropods Volkheimeria, Lapparentosaurus and Patagosaurus is discussed and compared; as well as that of Diplodocus, Apatosaurus, Brachiosaurus brancai, Camarasaurus, Dicraeosaurus, Haplocanthosaurus, the Titanosauridae s. str., Saltasaurus, and a Titanosaurinae indet. from Brazil. Other incompletely known Titanosauria and Opisthocoelicaudia are discussed more briefly. This study demonstrates that the presacral vertebrae represent a rich source of information for understanding the evolution and systematics of sauropodomorphs. In the basal dinosauromorph Marasuchus, three morphological types of vertebrae are recognized, a condition further developed by sauropodomorphs. Within Prosauropoda, the melanorosaurid Riojasaurus shows the most primitive condition in the number and organization of the cervical vertebrae: it has 9 cervicals, the first 5 of which exhibit the cervical morphological type, whereas the last 4 correspond to the dorsal morphological type. Plateosaurus is more derived than Riojasaurus in characters of the neck. The primitive sauropod-type vertebrae is more advanced than the typical prosauropod-type vertebrae, but it shows more primitive characters than the cetiosaurid type. It is considered that the cetiosaurid-type presacrals correspond to an evolutionary stage that might have made gigantism possible, triggering the adaptive radiation recorded in the Upper Jurassic of North America, Africa and Asia. In diplodocids the presacrals show clear relationships to the cetiosaurid type, but there are a high number of cervicals, and opisthocoely of centr (naturalhistory.si.edu)
  3. PBDB Taxon (paleobiodb.org)
  4. Lessemsaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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