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Igishushanyo cya Selmasaurus
Ikarita ya dinozore nimero 1621 muri 2ย 027

Selmasaurus

Izina risobanura: “Selma lizard, after the Selma Group of rocks in Alabama”1
Yaryaga: InyamaMozazoreKiretase ya nyumaMu by'ukuri si dinozore

Selmasaurus was a small, fierce marine lizard that lived in the shallow seas of North America during the time of the dinosaurs. It had a stiff skull that could not stretch like other mosasaurs, so it ate smaller prey. Two species are known, one from Alabama and one from Kansas.1

Akantu gashimishije: iki gikururanda cyo mu nyanja cyogaga mu gihe dinozore zagendaga ku butaka. Bose bakita dinozore, ariko cyari mu rindi shami ry'ibikururanda.
Yabayeho
hashize imyaka miliyoni 86 kugeza 722
Kiretase ya nyuma
Ibisigazwa byabonetse muri
Alabama and Kansas, USA21
Uburebure
3 kugeza 5 m (9,8 kugeza 16 ft)1
Umuvuduko wo hejuru
nka 38 km/h (24 mph)
Koga, igereranya

Yabayeho ryari?

Triyasike
Jurasike
Kiretase
Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Selmasaurus nka 5 m z'uburebure (16 ft)Igare ry'umuntu mukuru nka 1,8 m (5,9 ft)Imodoka nka 4,5 m (15 ft)Inzovu, inyamaswa nini kurusha izindi ziba ku butaka muri iki gihe nka 6,5 m (21 ft)
ndende nk'imbwa 5 zikurikiranyendende nk'imineke 28 ikurikiranyeyashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 4,7

Selmasaurus yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

utuntu twiza cyane

Utuntu dushimishije

1

Selmasaurus had the fewest teeth of any known mosasaur, making it unusual among its relatives.1

2

Unlike most mosasaurs, Selmasaurus could not widen its jaws to swallow big prey. Its skull was stiff and did not have the flexible joints that other mosasaurs used to eat large animals.1

3

The first Selmasaurus fossil was a skull found in Alabama, but for many years no one knew exactly which rock layer it came from. In 1998, scientists used tiny fossils from the skull to figure out its age.1

4

One species, Selmasaurus johnsoni, was discovered by a family in Kansas in 1996 and donated to a museum. Its skull is one of the most complete mosasaur skulls ever found.1

5

Selmasaurus lived about 86 to 80 million years ago, during the Late Cretaceous period.1

6

Stable isotope studies suggest that Selmasaurus johnsoni sometimes swam in deeper, open ocean waters, not just near the shore like many other plioplatecarpines.1

Byakozwe na AIIshusho ya Selmasaurus yakozwe na AI
Ishusho yakozwe na AI yerekana uko Selmasaurus ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.
wabajije

Ibibazo bibazwa cyane kuri Selmasaurus

?How big was Selmasaurus?

Selmasaurus was a small mosasaur, about 3 to 5 metres (10 to 16 feet) long.1

?What did Selmasaurus eat?

Selmasaurus was a predator that ate smaller prey. Because its skull could not stretch open wide, it could not swallow large animals like other mosasaurs.1

?Is Selmasaurus a dinosaur?

No, Selmasaurus is not a dinosaur. It is a marine lizard called a mosasaur that lived in the sea during the time of the dinosaurs.1

Ku bazobereye muri dinozore

Izina rya siyansi
Selmasaurus
Yiswe na
Wright and Shannon 19882
Itsinda
Mozazore
Umuryango / ishami
Mosasauridae2
Ishyirwa mu byiciro
Mosasauroidea2
Imyaka y'amabuye
imyaka miliyoni 86 kugeza 72 (Santonian / Campanian)2
Inzego z'amabuye
Mooreville Chalk, Niobrara2
Ibihugu
Amerika2
Ibisigazwa byanditswe
2 muri The Paleobiology Database2
Ivumburwa
Selmasaurus was first named in 1988 by Kenneth Wright and Samuel Shannon, based on a skull found in Alabama. The species S. russelli was named after paleontologist Dale Russell. A second species, S. johnsoni, was discovered in Kansas in 1996 and named in 2008.1
Biracyagibwaho impaka
Scientists are still debating exactly how Selmasaurus is related to other mosasaurs. Some think it is closely related to Ectenosaurus, while others place it in a group called Selmasaurini with Gavialimimus and Goronyosaurus.1

Aho amakuru yakuwe

  1. Selmasaurus (en.wikipedia.org)
  2. Selmasaurus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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