Leurospondylus

Naam beteken: “smooth vertebra”1

Het geëet: VleisPlesiosourusseLaat KrytTegnies nie 'n dinosourus nie

Leurospondylus was a plesiosaur, a long-necked marine reptile that lived in the Late Cretaceous period. It swam in rivers and estuaries in what is now Alberta, Canada. Scientists think it may have spent its early life in brackish 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

72 tot 66 miljoen jaar gelede2

Laat Kryt

Fossiele gevind in

Alberta, Canada (Horseshoe Canyon Formation, Red Deer River)1 2

Lengte

tot 2 m (6,6 ft)1

Topspoed

omtrent 27 km/h (17 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 4 huiskatte van neus tot stertso lank soos 11 piesangs punt aan puntkon die lengte van 'n groot swembad (50 m) in 6,7 sekondes swem

Hoe groot was Leurospondylus 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)

Leurospondylus omtrent 27 km/h (17 mph)

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

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

cool goed

Prettige feite

The only known fossil of Leurospondylus is a juvenile that was about 2 meters long. Adults may have been much larger.1

Its name means 'smooth vertebra' because its backbone bones were flat and wider than they were long.1

Leurospondylus lived in brackish water (a mix of fresh and salt water) in rivers and estuaries. This is unusual because most plesiosaurs lived in the open ocean.1

When it was first described in 1913, Leurospondylus was thought to be the last known plesiosaur fossil. Its species name 'ultimus' means 'last' in Latin.1

Scientists are not sure which family Leurospondylus belongs to. Its vertebrae look like those of pliosaurs, but its shoulder and hip bones resemble those of elasmosaurids.1

The fossil was found on the east bank of the Red Deer River in Alberta, Canada, in rocks that are about 72 to 66 million years old.2 1

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

Mite-breker

Mite: Leurospondylus was a dinosaur.

Waarheid: Leurospondylus was a plesiosaur, a marine reptile that lived in the sea and rivers. Plesiosaurs are not dinosaurs.1

Vir dino-kenners

Wetenskaplike naam: Leurospondylus
Benoem deur: Brown 19132
Groep: Plesiosourusse
Familie / klade: Elasmosauridae2
Klassifikasie: Plesiosauria > Elasmosauridae > Sauropterygia2
Ouderdom van die rotse: 72 tot 66 miljoen jaar (Maastrichtian)2
Rotsformasies: Horseshoe Canyon2
Lande: Kanada2
Fossielrekords: 1 in The Paleobiology Database2
Ontdekking: Leurospondylus was named by Barnum Brown in 1913 based on a juvenile fossil found in the Horseshoe Canyon Formation of Alberta, Canada.1 2
Steeds omstrede: Scientists still debate whether Leurospondylus belongs to the family Elasmosauridae or to a different group, because its bones show a mix of features.1

Waar die feite vandaan kom

Leurospondylus (en.wikipedia.org)
Leurospondylus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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