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Kaadi ya dayinoso No. 1696 ku 2 027

Sphaerotholus

Erinnya litegeeza: “ball dome”1

Yalyanga: EbimeraEz'emitwe egy'enkulungoEnkomerero ya Kuretasi

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

Yabeerawo

emyaka obukadde 84 okutuuka ku 66 emabega2

Enkomerero ya Kuretasi

Ebisigalira byazuulibwa mu

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

Obuwanvu

2 m (6.6 ft)1

Obuzito

40 kg (88 lb)1

Sipiidi esinga

nga 44 km/h (27 mph)

Okudduka, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

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obuzito ng'obw'embwa 2

obuwanvu nga kkapa 4 ab'awaka, ennyindo ku mukiraobuwanvu ng'amenvu 11 nga gaddiriŋŋanaobuzito ng'obwa kkapa 10 ab'awakaobuzito ng'obwa wotamerooni 8obuzito ng'obw'abaana 2 ab'omu nnasaleobuzito ng'obw'abaana b'essomero 1yandidduse mita 100 mu sikonda 8.2 (omuntu asinga embiro yeetaaga 9.6)

Sphaerotholus yali munene atya bw'ogeraageranya ku GGWE?

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Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Sphaerotholus nga 44 km/h (27 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

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

Ekifaananyi kya Sphaerotholus ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

wabuuza

Ebibuuzo ebisinga okubuuzibwa ku Sphaerotholus

?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

Omumenyi w'enfumo

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

Amazima: 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

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Sphaerotholus
Yatuumibwa: Williamson and Carr 20032
Ekibinja: Ez'emitwe egy'enkulungo
Ekika / ekibinja: Pachycephalosauridae2
Engabanya: Ornithischia > Pachycephalosauria2
Emyaka gy'enjazi: emyaka obukadde 84 okutuuka ku 66 (Campanian / Maastrichtian)2
Ensengeka z'enjazi: Hell Creek, Kirtland, Frenchman2
Ensi: Amerika, Kanada2
Ebisigalira ebyazuulibwa: 6 mu The Paleobiology Database2
Okuzuulibwa: 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
Kikyakubaganyizibwako ebirowoozo: 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

Ebituufu gye biva

Sphaerotholus (en.wikipedia.org)
Sphaerotholus in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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