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Sphaerotholus

Izenaren esanahia: “ball dome”1

Jaten zuen: LandareakKupula-buruakGoi Kretazeoa

Sphaerotholus was a dome-headed dinosaur that lived near the end of the Age of Dinosaurs. It had a thick, bony dome on its skull and probably used it for head-butting contests.1

Bizi izan zen

Duela 84 eta 66 milioi urte artean2

Goi Kretazeoa

Fosilak hemen aurkitu dira:

Western United States (Montana, New Mexico) and Canada (Alberta, Saskatchewan)2 1

Luzera

2 m (6,6 ft)1

Pisua

40 kg (88 lb)1

Abiadura maximoa

44 km/h inguru (27 mph)

Korrika egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Zein astuna zen?

2 txakur bezain astun

4 etxeko katu bezain luze, sudurretik buztanerabata bestearen atzean jarritako 11 banana bezain luze10 etxeko katu bezain astun8 angurria bezain astunhaur-eskolako 2 haur bezain astun1 eskolaume bezain astun100 metro 8,2 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Sphaerotholus 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)

Sphaerotholus 44 km/h inguru (27 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Sphaerotholus lived for a long time, about 7 to 8 million years, and spread across a wide area from New Mexico to Montana.1

There are five known species of Sphaerotholus, each with slightly different bumps and nodes on the back of their skulls.1

One species, S. triregnum, had a triple row of small bony nodes on its skull, making it look like it wore a triple crown.1

Another species, S. lyonsi, had a double row of small nodes, while others had a single row of large nodes.1

The name Sphaerotholus means 'ball dome', which describes its round, dome-shaped skull.1

Sphaerotholus is considered a highly evolved, or derived, pachycephalosaur.1

Sphaerotholus: AAk egindako irudia — Sphaerotholus 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

Sphaerotholus: gehien egindako galderak

?How big was Sphaerotholus?

Sphaerotholus edmontonensis reached about 2 metres (6.6 feet) in length and weighed around 40 kilograms (88 pounds). Other species were probably a similar size.1

?What did Sphaerotholus eat?

Sphaerotholus was a plant-eater. Like other pachycephalosaurs, it had teeth suited for eating tough plants.1

?When did Sphaerotholus live?

Sphaerotholus lived during the Late Cretaceous, from about 76 to 66 million years ago.1

?Where did Sphaerotholus live?

Sphaerotholus lived in what is now the western United States and Canada, from New Mexico to Montana and Alberta.1

?How many species of Sphaerotholus are there?

There are five known species: S. goodwini, S. buchholtzae, S. edmontonensis, S. lyonsi, and S. triregnum.1

?Why did Sphaerotholus have a dome?

Sphaerotholus had a thick, bony dome on its skull that it probably used for head-butting contests, like other dome-headed dinosaurs.1

Mito-hauslea

Mitoa: Some people think Sphaerotholus used its dome for ramming like a battering ram.

Egia: Scientists are not sure. The dome might have been for head-butting, but it could also have been for showing off to mates or recognizing each other.1

Dino adituentzat

Izen zientifikoa: Sphaerotholus
Izendatzailea:: Williamson and Carr 20032
Taldea: Kupula-buruak
Familia / klada: Pachycephalosauridae2
Sailkapena: Ornithischia > Pachycephalosauria2
Arroken adina: 84 eta 66 milioi urte artean (Campanian / Maastrichtian)2
Arroka-formazioak: Hell Creek, Kirtland, Frenchman2
Herrialdeak: AEB, Kanada2
Fosil-erregistroak: 6 The Paleobiology Database datu-basean2
Aurkikuntza: The first species, Sphaerotholus goodwini, was named by Thomas Williamson and Thomas Carr in 2002 from a partial skull found in New Mexico. The species name honors paleontologist Mark Goodwin.1
Oraindik eztabaidagai: Scientists still debate whether some species, like S. edmontonensis, are really separate or just the same as others, because their skulls look very similar.1

Datuak nondik datozen

Sphaerotholus (en.wikipedia.org)
Sphaerotholus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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