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Probactrosaurus

Naam beteken: “before Bactrosaurus”1

Het geëet: PlantePlantvreters met snawelsVroeë Kryt

Probactrosaurus was a plant-eating dinosaur that lived in China during the Early Cretaceous period. It had a narrow snout and long arms, and it could walk on two or four legs. Scientists think it was an early relative of the duck-billed dinosaurs.2

Het geleef

121 tot 100 miljoen jaar gelede4

Vroeë Kryt

Fossiele gevind in

Inner Mongolia, China2 3

Lengte

5,5 tot 6 m (18 tot 20 ft)2 1

Gewig

1 ton (2 200 lb)2

Hoogte

1,8 m (5,9 ft)

skatting

Topspoed

omtrent 33 km/h (21 mph)

Hardloop, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

Hoe hoog was dit?

skatting

Hoe swaar was dit?

so swaar soos 50 honde

so lank soos 6 honde van neus tot stertso lank soos 33 piesangs punt aan puntso swaar soos 200 waatlemoeneso swaar soos 53 kleuterskoolkindersso swaar soos 31 skoolkindersso swaar soos 2 ysberekon 100 meter in 11 sekondes hardloop (die vinnigste mens het 9,6 nodig)

Hoe groot was Probactrosaurus vergeleke met JOU?

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

Hoe vinnig was dit?

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

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

Probactrosaurus omtrent 33 km/h (21 mph)

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

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

cool goed

Prettige feite

Probactrosaurus means 'before Bactrosaurus' because the scientist who named it thought it was the ancestor of Bactrosaurus. That idea is no longer accepted.2

It had a small thumb spike, unlike later duck-billed dinosaurs which lost their thumb spikes.2

Probactrosaurus lived about 121 to 99 million years ago, during the Early Cretaceous.1 3

Its fossils were found in the Miaogou Formation in Inner Mongolia, China.2 3

Probactrosaurus had a double row of cheek teeth, with a third row of replacement teeth starting to grow. This helped it grind up plants.2

The first fossils were discovered by a Soviet-Chinese expedition in 1959 and 1960.2

KI-prent van Probactrosaurus — 'n KI-prent van hoe Probactrosaurus 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.

Vir dino-kenners

Wetenskaplike naam: Probactrosaurus
Benoem deur: Rozhdestvensky 19664
Groep: Plantvreters met snawels
Familie / klade: Hadrosauroidea4
Klassifikasie: Ornithischia > Ornithopoda > Iguanodontia4
Ouderdom van die rotse: 121 tot 100 miljoen jaar (Aptian / Albian)4
Rotsformasies: Miaogou4
Lande: China4
Fossielrekords: 2 in The Paleobiology Database4
Ontdekking: Probactrosaurus was named by Soviet paleontologist A. K. Rozhdestvensky in 1966. The fossils were found in Inner Mongolia, China, during a Soviet-Chinese expedition in 1959 and 1960.2 1
Steeds omstrede: Scientists are still debating exactly where Probactrosaurus sits on the dinosaur family tree. Some think it is a very early hadrosauroid, while others place it closer to the duck-billed dinosaurs.2

Waar die feite vandaan kom

Probactrosaurus | Natural History Museum (nhm.ac.uk)
Probactrosaurus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Probactrosaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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