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Dinokaart nr. 1549 van 2 027

Rhomaleosaurus

Naam beteken: “strong lizard”1

Het geëet: VleisPlesiosourusseVroeë JuraTegnies nie 'n dinosourus nie

Rhomaleosaurus was a giant marine reptile that swam in the seas during the Early Jurassic period, about 183 to 175 million years ago. It was one of the biggest predators in the ocean at that time, with a huge head and a long neck, and it ate other sea creatures like ichthyosaurs and ammonites.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

201 tot 175 miljoen jaar gelede5

Vroeë Jura

Fossiele gevind in

Northamptonshire and Yorkshire, United Kingdom1

Lengte

7 m (23 ft)1 2

Topspoed

omtrent 26 km/h (16 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 7 honde van neus tot stertso lank soos 39 piesangs punt aan puntkon die lengte van 'n groot swembad (50 m) in 6,9 sekondes swem

Hoe groot was Rhomaleosaurus 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)

Rhomaleosaurus omtrent 26 km/h (16 mph)

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

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

cool goed

Prettige feite

Rhomaleosaurus had a very long neck compared to other pliosaurs, but still had a gigantic head, making it a mix of features from both long-necked and short-necked plesiosaurs.2

The first fossil of Rhomaleosaurus was found in 1848 in an alum quarry at Kettleness, near Whitby, England, and was kept at Mulgrave Castle for five years before being sent to Dublin.1

The skull of the holotype specimen is 88 centimeters long, and the whole animal was about 7 meters (23 feet) long.2

Rhomaleosaurus lived at the same time as the large ichthyosaur Temnodontosaurus, and both were top predators in the same ocean.1

Scientists think Rhomaleosaurus could pick up scents while underwater, helping it find prey.1

The name Rhomaleosaurus was given by Harry Seeley in 1874, based on a fossil that was originally thought to be a species of Plesiosaurus.1 5

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

?How big was Rhomaleosaurus?

About 7 metres (23 feet) long.1 3

?What did Rhomaleosaurus eat?

It ate ichthyosaurs, ammonites, other plesiosaurs, belemnites, and fish.1 4

?Was Rhomaleosaurus a dinosaur?

No, it was a marine reptile called a plesiosaur, not a dinosaur.1 4

?When did Rhomaleosaurus live?

It lived during the Early Jurassic period, about 183 to 175 million years ago.1

?Where was Rhomaleosaurus found?

Fossils have been found in Northamptonshire and Yorkshire, England, in the Whitby Mudstone Formation.1 4

Vir dino-kenners

Wetenskaplike naam: Rhomaleosaurus
Benoem deur: Seeley 18745
Groep: Plesiosourusse
Familie / klade: Rhomaleosauridae5
Klassifikasie: Plesiosauria > Sauropterygia5
Ouderdom van die rotse: 201 tot 175 miljoen jaar (Hettangian / Toarcian)5
Rotsformasies: Whitby Mudstone, Alum Shale, Blue Lias5
Lande: Verenigde Koninkryk5
Fossielrekords: 15 in The Paleobiology Database5
Ontdekking: The first Rhomaleosaurus fossil was discovered in 1848 in an alum quarry at Kettleness, near Whitby, England. It was named Plesiosaurus cramptoni by Alexander Carte and W. H. Bailey in 1863, and later Harry Seeley placed it in its own genus, Rhomaleosaurus, in 1874.1
Steeds omstrede: Scientists still debate which species belong to Rhomaleosaurus. Some species once placed here, like Rhomaleosaurus megacephalus, are now thought to belong to other genera.1

Waar die feite vandaan kom

Rhomaleosaurus (en.wikipedia.org)
The skull of the giant predatory pliosaur Rhomaleosaurus cramptoni: implications for plesiosaur phylogenetics (plesiosauria.com)
Rhomaleosaurus – Plesiosaur Directory (plesiosauria.com)
An exceptional fossil plesiosaur - Rhomaleosaurus cramptoni | National Museum of Ireland (museum.ie)
Rhomaleosaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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