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Dinokaart nr. 1723 van 2 027

Styxosaurus

Naam beteken: “river of the dead lizard”1

Het geëet: VleisPlesiosourusseLaat KrytTegnies nie 'n dinosourus nie

Styxosaurus was a long-necked marine reptile that swam in the shallow seas that once covered North America. It was not a dinosaur, but a plesiosaur, and it used its sharp teeth to catch fish and squid.1 2

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

90 tot 72 miljoen jaar gelede5

Laat Kryt

Fossiele gevind in

Kansas, South Dakota, Nebraska, and Wyoming, USA2

Lengte

5 tot 7 m (16 tot 23 ft)2

Gewig

3,1 ton (6 800 lb)3

Topspoed

omtrent 24 km/h (15 mph)

Swem, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

Hoe swaar was dit?

so swaar soos 2 motors

so lank soos 7 honde van neus tot stertso lank soos 39 piesangs punt aan puntso swaar soos 160 hondeso swaar soos 620 waatlemoeneso swaar soos 4 hele skoolklasse vol kindersso swaar soos 7 ysberekon die lengte van 'n groot swembad (50 m) in 7,5 sekondes swem

Hoe groot was Styxosaurus 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)

Styxosaurus omtrent 24 km/h (15 mph)

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

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

cool goed

Prettige feite

Styxosaurus had an extremely long neck, with over 60 vertebrae, making it one of the longest necks of any animal that ever lived.2

It lived in the Western Interior Seaway, a huge inland sea that split North America in two during the time of the dinosaurs.2

Some fossils of Styxosaurus were once thought to belong to a different animal called Hydralmosaurus, but scientists now think they are the same.2

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

?How big was Styxosaurus?

About 11.3 metres (37 ft) long and weighed around 3.1 metric tons (3.4 short tons). Its neck alone was about 5.25 metres (17.2 ft) long.4

?What did Styxosaurus eat?

It ate fish, squid, and belemnites. It grabbed slippery prey with its sharp, interlocking teeth and swallowed it whole.4

?When did Styxosaurus live?

It lived during the Late Cretaceous period, about 100 to 72 million years ago.4 5

?Did Styxosaurus have a long neck?

Yes, it had an extremely long neck with over 60 vertebrae, making it one of the longest necks of any animal.4 2

?Is Styxosaurus a dinosaur?

No, it is a plesiosaur, a marine reptile that lived in the sea, not a dinosaur.4

?Where was Styxosaurus found?

Fossils have been found in North America, mainly in Kansas, South Dakota, Nebraska, and Wyoming, in rocks that were once the bottom of a shallow sea.4 5

Vir dino-kenners

Wetenskaplike naam: Styxosaurus
Benoem deur: Welles 19435
Groep: Plesiosourusse
Familie / klade: Elasmosauridae5
Klassifikasie: Plesiosauria > Elasmosauridae > Sauropterygia5
Ouderdom van die rotse: 90 tot 72 miljoen jaar (Coniacian / Campanian)5
Rotsformasies: Pierre Shale, Niobrara5
Lande: VSA5
Fossielrekords: 8 in The Paleobiology Database5
Ook bekend as: Hydralmosaurus (ouer name tel nou as dieselfde dier)5
Steeds omstrede: Scientists are still debating exactly how many species of Styxosaurus existed, and whether some fossils belong to this genus or to other elasmosaurids.2

Waar die feite vandaan kom

PBDB Taxon (paleobiodb.org)
Taxonomic reassessment of Hydralmosaurus as Styxosaurus : new insights on the elasmosaurid neck evolution throughout the Cretaceous (pmc.ncbi.nlm.nih.gov)
Styxosaurus (en.wikipedia.org)
Styxosaurus (en.wikipedia.org)
Styxosaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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