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Sphaerotholus

Hiika maqaa: “ball dome”1

Kan nyaate: BiqiltootaMataa-gombisaaKireetaashasii Dhumaa

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

Kan jiraate

waggaa miliyoona 84 hanga 66 dura2

Kireetaashasii Dhumaa

Fosiliiwwan kan itti argaman

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

Dheerina

2 m (6.6 ft)1

Ulfaatina

40 kg (88 lb)1

Saffisa ol'aanaa

gara 44 km/sa'a (27 mph)

Fiiguu, tilmaama

Yoom jiraate?

Tiraayaasikii

Juraasikii

Kireetaashasii

waggaa miliyoona 252 dura20114566, asteerooyidii

Hammam guddaa ture?

Hammam dheeraa ture?

Hammam ulfaataa ture?

akka saree 2 ulfaata

akka adurree manaa 4 funyaan hanga eegeetti dheeraaakka muuzii 11 walitti hiriiran dheeraaakka adurree manaa 10 ulfaataakka habxuu 8 ulfaataakka ijoollee KG 2 ulfaataakka ijoollee mana barumsaa 1 ulfaatameetira 100 sekondii 8.2 keessatti fiiguu danda'a (namni hunda caalaa saffisaan 9.6 barbaada)

SI wajjin yoo wal bira qabamu, Sphaerotholus hammam guddaa ture?

Herrega qofa barbaadduu kee keessatti. Wanti tokkollee hin olkaa'amu, eessayyuu hin ergamu.

Hammam saffisaa ture?

Nama miilaan deemu gara 5 km/sa'a (3 mph)

Daa'ima saayikilii irra jiru gara 12 km/sa'a (7 mph)

Sphaerotholus gara 44 km/sa'a (27 mph)

Farda gulufu gara 65 km/sa'a (40 mph)

Cheetaa gara 100 km/sa'a (62 mph)

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

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

Fakkii AI'n hojjetame: Sphaerotholus — Fakkii AI'n hojjetame kan Sphaerotholus maal fakkaachuu akka danda'u agarsiisu, kompiitaraan beekumsa saayintistootaa irratti hundaa'uun hojjetame. Tilmaama qofa: bineensi dhugaa adda ta'ee mul'achuu danda'a, halluu isaa dhugaa immoo namni beeku hin jiru.

ati gaafatte

Gaaffiiwwan waa'ee Sphaerotholus baay'ee gaafataman

?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

Seenaa sobaa diigaa

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

Dhugaa: 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

Ogeeyyii daayinootiif

Maqaa saayinsii: Sphaerotholus
Kan maqaa baase: Williamson and Carr 20032
Garee: Mataa-gombisaa
Maatii / kilaadii: Pachycephalosauridae2
Ramaddii: Ornithischia > Pachycephalosauria2
Umurii dhagaawwanii: waggaa miliyoona 84 hanga 66 (Campanian / Maastrichtian)2
Caasaawwan dhagaa: Hell Creek, Kirtland, Frenchman2
Biyyoota: Ameerikaa, Kanaadaa2
Galmee fosilii: 6 The Paleobiology Database keessa2
Argannoo: 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
Ammallee falmisiisaa: 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

Odeeffannoon eessaa dhufa

Sphaerotholus (en.wikipedia.org)
Sphaerotholus in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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