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Megacephalosaurus: marrazkia
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Megacephalosaurus

Izenaren esanahia: “great-headed lizard”1
Jaten zuen: HaragiaPlesiosauroakGoi KretazeoaTeknikoki ez da dinosauroa

Megacephalosaurus was a huge, short-necked plesiosaur that swam in the ancient sea that split North America in two. It had a massive head, the biggest of any plesiosaur found on the continent, and used its long snout to catch smaller prey.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 94 eta 90 milioi urte artean3
Goi Kretazeoa
Fosilak hemen aurkitu dira:
Kansas and other parts of the midwestern United States13
Luzera
6 eta 9 m artean (20 eta 30 ft artean)1
Abiadura maximoa
23 km/h inguru (14 mph)
Igeri egitea, kalkulua

Noiz bizi izan zen?

Triasikoa
Jurasikoa
Kretazeoa
Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Megacephalosaurus 9 m inguru luze (30 ft)Heldu baten bizikleta 1,8 m inguru (5,9 ft)Auto bat 4,5 m inguru (15 ft)Elefante bat, gaur egungo lehorreko animaliarik handiena 6,5 m inguru (21 ft)
ilaran aparkatutako 2 auto bezain luzebata bestearen atzean jarritako 50 banana bezain luzeigerileku handi baten luzera (50 m) 7,8 segundotan egin zezakeen igerian

Zein handia zen Megacephalosaurus ZUREKIN alderatuta?

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

Zein azkarra zen?

gauza bikainak

Datu dibertigarriak

1

Megacephalosaurus was one of the last pliosaurs, living about 94 to 93 million years ago during the Turonian stage of the Late Cretaceous.1

2

Its skull was up to 1.75 meters (5.7 feet) long, making it the largest skull of any plesiosaur known from North America.1

3

The teeth had long, thin ridges called apicobasal ridges that helped grip and puncture slippery prey.1

4

It shared its ocean home with sharks like Cretoxyrhina and Squalicorax, as well as other marine reptiles like mosasaurs and sea turtles.1

5

The first fossils were found in 1950 and were originally thought to belong to a different pliosaur called Brachauchenius lucasi.1

6

It was not until 2013 that scientists realized the fossils were from a new, distinct animal and named it Megacephalosaurus.1

AAk eginaMegacephalosaurus: AAk egindako irudia
Megacephalosaurus 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

Megacephalosaurus: gehien egindako galderak

?How big was Megacephalosaurus?

It was one of the largest marine reptiles of its time, estimated to be 6 to 9 meters (20 to 30 ft) long. Its skull alone could reach 1.75 meters (5.7 ft) in length.1

?What did Megacephalosaurus eat?

It likely ate smaller prey, because it had a long snout and teeth that were all about the same size. Its teeth had ridges that helped grip and puncture slippery animals.12

?When did Megacephalosaurus live?

It lived about 94 to 93 million years ago, during the Turonian stage of the Late Cretaceous. It was among the last of the pliosaurs.1

?Is Megacephalosaurus a dinosaur?

No, it is not a dinosaur. It is a plesiosaur, a type of marine reptile that lived in the ocean at the same time as dinosaurs.1

Dino adituentzat

Izen zientifikoa
Megacephalosaurus
Izendatzailea:
Schumacher et al. 20133
Taldea
Plesiosauroak
Familia / klada
Pliosauridae3
Sailkapena
Plesiosauria > Pliosauridae > Sauropterygia3
Arroken adina
94 eta 90 milioi urte artean (Turonian)3
Arroka-formazioak
Carlile Shale, Greenhorn Limestone3
Herrialdeak
AEB3
Fosil-erregistroak
2 The Paleobiology Database datu-basean3
Aurkikuntza
The first fossils were discovered in 1950 by George F. Sternberg in Kansas. They were later studied by Bruce Schumacher, Kenneth Carpenter, and Mike Everhart, who named the new species Megacephalosaurus eulerti in 2013.1
Oraindik eztabaidagai
Scientists are still debating how the last brachauchenine pliosaurs, including Megacephalosaurus, are related to each other and what their teeth tell us about their evolution.2

Datuak nondik datozen

  1. Megacephalosaurus (en.wikipedia.org)
  2. Morphological and phylogenetic aspects of the dentition of Megacephalosaurus eulerti , a pliosaurid from the Turonian of Kansas, USA, with remarks on the cranial anatomy of the taxon (cambridge.org)
  3. Megacephalosaurus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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