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Rhomaleosaurus

Izenaren esanahia: “strong lizard”1

Jaten zuen: HaragiaPlesiosauroakBehe JurasikoaTeknikoki ez da dinosauroa

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

Datu dibertigarria: itsas narrasti hau igerian zebilen dinosauroak lehorrean ibiltzen ziren bitartean. Denek dino deitzen diete, baina narrastien beste adar bat ziren.

Bizi izan zen

Duela 201 eta 175 milioi urte artean5

Behe Jurasikoa

Fosilak hemen aurkitu dira:

Northamptonshire and Yorkshire, United Kingdom1

Luzera

7 m (23 ft)1 2

Abiadura maximoa

26 km/h inguru (16 mph)

Igeri egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

7 txakur bezain luze, sudurretik buztanerabata bestearen atzean jarritako 39 banana bezain luzeigerileku handi baten luzera (50 m) 6,9 segundotan egin zezakeen igerian

Zein handia zen Rhomaleosaurus ZUREKIN alderatuta?

Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.

Zein azkarra zen?

Pertsona bat oinez 5 km/h inguru (3 mph)

Haur bat bizikletan 12 km/h inguru (7 mph)

Rhomaleosaurus 26 km/h inguru (16 mph)

Zaldi bat lauhazka 65 km/h inguru (40 mph)

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

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

Rhomaleosaurus: AAk egindako irudia — Rhomaleosaurus nolakoa izan zitekeen erakusten duen AAk egindako irudia, ordenagailu batek zientzialariek dakitenetik sortua. Asmakizun bat da: benetako animalia desberdina izan zitekeen, eta inork ez daki zein ziren bere benetako koloreak.

zure galderak

Rhomaleosaurus: gehien egindako galderak

?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

Dino adituentzat

Izen zientifikoa: Rhomaleosaurus
Izendatzailea:: Seeley 18745
Taldea: Plesiosauroak
Familia / klada: Rhomaleosauridae5
Sailkapena: Plesiosauria > Sauropterygia5
Arroken adina: 201 eta 175 milioi urte artean (Hettangian / Toarcian)5
Arroka-formazioak: Whitby Mudstone, Alum Shale, Blue Lias5
Herrialdeak: Erresuma Batua5
Fosil-erregistroak: 15 The Paleobiology Database datu-basean5
Aurkikuntza: 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
Oraindik eztabaidagai: 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

Datuak nondik datozen

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): adina, tokiak, arroka-formazioak, sailkapena.

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