Dinokaart nr. 0952 van 2 027

Keichousaurus

Naam beteken: “Kweichow lizard”1

Het geëet: VisSeereptieleVroeë Trias tot Middel-TriasTegnies nie 'n dinosourus nie

Keichousaurus was a small marine reptile that swam in warm seas during the Triassic Period. It had a long neck, a long tail, and paddle-like limbs to row through the water.1

Prettige feit: hierdie seereptiel het geswem terwyl dinosourusse op land geloop het. Almal noem hulle dino's, maar hulle was 'n ander tak van die reptiele.

Het geleef

251 tot 237 miljoen jaar gelede5

Vroeë Trias tot Middel-Trias

Fossiele gevind in

Guizhou, Hubei, and Yunnan provinces, China1 2

Lengte

0,3 tot 0,5 m (1 tot 1,6 ft)1

Topspoed

omtrent 4 km/h (2 mph)

Swem, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

so lank soos 3 piesangs punt aan puntso lank soos 16 speelgoedboustene in 'n rykon die lengte van 'n groot swembad (50 m) in 45 sekondes swem

Hoe groot was Keichousaurus vergeleke met JOU?

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

Hoe vinnig was dit?

Keichousaurus omtrent 4 km/h (2 mph)

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

Keichousaurus gave birth to live young instead of laying eggs. Baby fossils have been found inside adult females.1

This reptile had very broad ulna bones in its forelimbs, which helped make its paddles more effective for swimming.1

Males grew slightly larger than females. Mature males reached about 16 cm snout-vent length, while females reached about 15 cm.1

Keichousaurus is one of the most common sauropterygian fossils found in China. Many complete skeletons have been collected.1

It had a long, serpentine neck and a small head, similar to other pachypleurosaurs.1

Keichousaurus probably used a rowing motion with its paddle-like limbs to move through the water.1

KI-prent van Keichousaurus — 'n KI-prent van hoe Keichousaurus 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 Keichousaurus

?Is Keichousaurus a dinosaur?

No, Keichousaurus is not a dinosaur. It is a marine reptile called a sauropterygian.1

?How big was Keichousaurus?

Keichousaurus was very small. Mature males reached about 16 cm snout-vent length, and females about 15 cm.1

?What did Keichousaurus eat?

It ate fish. It had pointed teeth and backward-curved teeth at the front of its mouth to catch and swallow prey whole.1

?Did Keichousaurus lay eggs?

No. Fossil evidence shows that Keichousaurus gave birth to live young, not eggs. Babies have been found inside adult females.1 4 3

?Could Keichousaurus swim?

Yes, it was a good swimmer. It used its paddle-like limbs to row through the water, similar to underwater flight.1

?When did Keichousaurus live?

Keichousaurus lived during the Triassic Period, from about 251 to 227 million years ago.1

Vir dino-kenners

Wetenskaplike naam: Keichousaurus
Benoem deur: Young 19585
Groep: Seereptiele
Familie / klade: Keichousauridae5
Klassifikasie: Sauropterygia5
Ouderdom van die rotse: 251 tot 237 miljoen jaar ()5
Rotsformasies: Falang, Jialingjiang, Gejiu5
Lande: China5
Fossielrekords: 7 in The Paleobiology Database5
Ontdekking: The first fossil of Keichousaurus was found in 1957 in Guizhou Province, China, by Hu Chengzhi. It was named by Chinese paleontologist Young Chung-chien in 1958.1
Steeds omstrede: Scientists are not sure whether Keichousaurus was viviparous (giving birth to live young) or ovoviviparous (eggs hatching inside the mother).3

Waar die feite vandaan kom

Keichousaurus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Morphology of Keichousaurus hui from the Middle Triassic of Xingyi, Guizhou Province with Comments on Its Reproduction Mode (xbna.pku.edu.cn)
Triassic marine reptiles gave birth to live young | Nature (nature.com)
Keichousaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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