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Kronosaurus

Izenaren esanahia: “lizard of Kronos, the Titan from Greek mythology”1

Jaten zuen: HaragiaPlesiosauroakBehe KretazeoaTeknikoki ez da dinosauroa

Kronosaurus was a giant marine reptile that swam in the oceans and inland seas of the Early Cretaceous. It was a pliosaur, a type of short-necked plesiosaur with a huge head and powerful jaws. With its four flippers, it could 'fly' underwater to chase down big prey.2 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 121 eta 100 milioi urte artean4

Behe Kretazeoa

Fosilak hemen aurkitu dira:

Queensland, New South Wales and South Australia, Australia; also Boyacá, Colombia2 1 4

Luzera

9 eta 10 m artean (30 eta 33 ft artean)2

Pisua

10,6 tona eta 12,1 tona artean (23 400 eta 26 700 lb artean)1

Abiadura maximoa

19 km/h inguru (12 mph)

Igeri egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Zein astuna zen?

2 elefante bezain astun

ilaran aparkatutako 2 auto bezain luzebata bestearen atzean jarritako 56 banana bezain luze8 auto bezain astun2400 angurria bezain astunhaurrez betetako 15 ikasgela oso bezain astun27 hartz zuri bezain astunigerileku handi baten luzera (50 m) 9,5 segundotan egin zezakeen igerian

Zein handia zen Kronosaurus 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)

Kronosaurus 19 km/h inguru (12 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Kronosaurus had a skull at least 2.4 metres long, which is huge compared to its body length of about 10 metres.2

Its teeth were conical and crushing, perfect for cracking the hard shells of ammonites.2

One Kronosaurus fossil (QM F10113) contains the remains of a sea turtle inside. The turtle was so big that it choked the pliosaur.1

Bite marks on the skull of an elasmosaurid called Eromangasaurus show that Kronosaurus attacked it, probably aiming for the long neck.1

Kronosaurus lived in the cool Eromanga Sea, an inland sea that covered parts of Australia. Glendonites and ice-rafted boulders show the water was near-freezing in winter.2

Unlike long-necked elasmosaurids, pliosaurids like Kronosaurus could cruise at high speed for a long time.2

The first Kronosaurus fossil was a piece of jawbone found in 1899. It was first thought to be from an ichthyosaur.1

Kronosaurus: AAk egindako irudia — Kronosaurus 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

Kronosaurus: gehien egindako galderak

?How big was Kronosaurus?

Kronosaurus was about 9 to 10 metres long. Early guesses of 13 metres were too big because the skeleton had too many vertebrae.1 2

?Was Kronosaurus a dinosaur?

No, Kronosaurus was a marine reptile called a pliosaur, a type of plesiosaur. It was not a dinosaur.1 2

?What did Kronosaurus eat?

Kronosaurus ate large fish, squid, ammonites, sea turtles, and even other marine reptiles like elasmosaurids and ichthyosaurs.2 1

?How fast could Kronosaurus swim?

Pliosaurids like Kronosaurus could cruise at high speeds for long periods, using all four flippers to 'fly' underwater. Scientists do not know the exact speed.2

?How strong was Kronosaurus' bite?

Its bite force is estimated at 15,000 to 27,000 newtons. That is stronger than any living animal, but less than megalodon.1

?Where did Kronosaurus live?

Kronosaurus lived in the Eromanga Sea, an inland sea that covered parts of Australia during the Early Cretaceous. The water was cold, near freezing in winter.2 1

?When did Kronosaurus live?

Kronosaurus lived during the Early Cretaceous, about 125 to 100 million years ago.3

?Did Kronosaurus have feathers?

No, Kronosaurus was a marine reptile with smooth skin and flippers. It did not have feathers.1

Mito-hauslea

Mitoa: Kronosaurus was nearly 13 metres long.

Egia: Scientists now think it was no more than about 10 metres long. The old 13-metre estimate was based on exaggerated reconstructions.2

Dino adituentzat

Izen zientifikoa: Kronosaurus
Izendatzailea:: Longman 19244
Taldea: Plesiosauroak
Familia / klada: Pliosauridae4
Sailkapena: Plesiosauria > Pliosauridae > Sauropterygia4
Arroken adina: 121 eta 100 milioi urte artean (Aptian / Albian)4
Arroka-formazioak: Wallumbilla, Toolebuc, Paja4
Herrialdeak: Australia, Kolonbia4
Fosil-erregistroak: 4 The Paleobiology Database datu-basean4
Aurkikuntza: The first fossil was found in 1899 near Hughenden, Queensland. In 1924, Albert Heber Longman named it Kronosaurus queenslandicus. A famous skeleton was collected by the Harvard Museum of Comparative Zoology in the early 1930s.1
Oraindik eztabaidagai: Scientists are not sure if the Colombian pliosaur Monquirasaurus boyacensis was really a close relative of Kronosaurus or belongs to a different group.1

Datuak nondik datozen

Kronosaurus (en.wikipedia.org)
Kronosaurus queenslandicus - The Australian Museum (australian.museum)
Fossil Factfile: Kronosaurus (australiangeographic.com.au)
Kronosaurus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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