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Helicoprion

Izina risobanura: “spiral saw”1

Yaryaga: InyamaIbyamamare bya keraPaleyozoyike, mbere ya dinozoreSi dinozore, ariko ni icyamamare cya kera

Helicoprion was a shark-like fish that lived in the Permian seas. It had a strange, spiral-shaped tooth whorl in its lower jaw that looked like a buzz-saw. This helped it catch and eat soft prey like squid and other cephalopods.1 2

Iyi si dinozore, ariko ni imwe mu nyamaswa zizwi cyane zo mu bihe bya kera, ni yo mpamvu na yo ifite umwanya muri Dino Wiki.

Yabayeho

hashize imyaka miliyoni 290 kugeza 2701

Paleyozoyike, mbere ya dinozore

Ibisigazwa byabonetse muri

Fossils have been found in many places including the United States (Idaho, California, Nevada, Texas, Utah, Wyoming, Montana), Russia, Australia, Canada, China, Japan, Kazakhstan, Mexico, and Norway.3 1

Uburebure

5 kugeza 12 m (16 kugeza 39 ft)1

Umuvuduko wo hejuru

nka 30 km/h (19 mph)

Koga, igereranya

Yabayeho ryari?

Mbere ya dinozore

Igihe cya dinozore

Igihe cy'inyamabere

Hashize miliyoni 400 z'imyaka25266uyu munsi

Yanganaga ite?

Yari ndende ite?

ndende nk'imodoka 2,5 ziparitse ku murongondende nk'imineke 67 ikurikiranyeyashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 6

Helicoprion yanganaga ite ugereranyije NAWE?

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

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Helicoprion nka 30 km/h (19 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

Helicoprion is known mostly from its spiral tooth whorls, because its skeleton was made of cartilage and did not fossilize easily.1 2

The tooth whorl sat in the lower jaw, and each tooth had a different job: front teeth hooked prey, middle teeth pierced and cut, and back teeth pushed food into the throat.1 2

Helicoprion lived during the Permian Period, about 290 to 270 million years ago, which is before the dinosaurs.1

Scientists think Helicoprion was an apex predator in its environment, and it may have gathered in deep inland seas like the Phosphoria Sea (now Idaho) to breed or hunt.1

The name Helicoprion comes from Greek words meaning 'spiral saw', because of its coiled tooth whorl.1

Helicoprion could grow up to 12 metres (39 feet) long, about as long as a school bus.1

Ishusho ya Helicoprion yakozwe na AI — Ishusho yakozwe na AI yerekana uko Helicoprion 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 Helicoprion

?Was Helicoprion a dinosaur?

No, Helicoprion was a shark-like cartilaginous fish, not a dinosaur. It lived in the Permian seas long before the first dinosaurs appeared.1

?How big was Helicoprion?

Helicoprion is estimated to have reached lengths between 5 and 12 metres, about as long as a school bus.1

?What did Helicoprion eat?

Helicoprion ate soft-bodied prey like squid, belemnoids, and other cephalopods. It may also have eaten hard-shelled ammonoids and nautiloids by pulling the body out of the shell.1 2

?When did Helicoprion live?

Helicoprion lived from the Early to the Middle Permian, about 290 to 270 million years ago. That is before the dinosaurs.1

?Where was Helicoprion found?

Helicoprion fossils have been found all over the world, including in the United States (especially Idaho), Russia, Australia, China, and Japan. It lived in many seas.1 2

?How did Helicoprion use its tooth whorl?

The tooth whorl sat in the lower jaw and worked like a saw. Front teeth hooked prey, middle teeth pierced and cut, and back teeth pushed food into the throat.1 2

?Why did Helicoprion have a spiral tooth?

The spiral tooth whorl helped Helicoprion catch and eat soft prey like squid. It could also help shell hard-shelled animals by pulling the body out of the shell.1 2

?Is Helicoprion still alive?

No, Helicoprion went extinct about 270 million years ago, at the end of the Middle Permian. It is only known from fossils.1

?How fast could Helicoprion swim?

Maybe up to about 30 km/h (19 mph). This is a guess: nobody knows for sure. Its body was probably shaped like a tuna or mackerel shark, so it was likely a fast swimmer.1

?What would happen if Helicoprion was alive today?

If Helicoprion were alive today, it would be a large, fast-swimming predator that ate squid and fish. But it lived in the Permian and is extinct, so we can only imagine.1

Gusenya ibinyoma

Ibivugwa: Some people think Helicoprion's tooth whorl was on its nose or tail.

Ukuri: Scientists now know the tooth whorl was in the lower jaw, based on fossils that preserved jaw cartilage.1 2

Ku bazobereye muri dinozore

Izina rya siyansi: Helicoprion
Yiswe na: Karpinsky 18993
Itsinda: Ibyamamare bya kera
Umuryango / ishami: Helicoprionidae3
Ishyirwa mu byiciro: Chondrichthyes > Eugeneodontiformes > Helicoprionidae3
Imyaka y'amabuye: imyaka miliyoni 299 kugeza 254 (Asselian / Wuchiapingian)3
Inzego z'amabuye: Phosphoria, Assistance, Bone Spring3
Ibihugu: Amerika, Kanada, Ubuyapani, Megizike, Ositaraliya, Kazakisitani3
Ibisigazwa byanditswe: 35 muri The Paleobiology Database3
Ivumburwa: Helicoprion was first named in 1899 by Russian geologist Alexander Karpinsky, based on fossils found in Russia and Australia. The type species is Helicoprion bessonowi.1 3
Biracyagibwaho impaka: Scientists are still unsure about the exact shape of Helicoprion's body, because almost no skeleton has been found, only tooth whorls.1 2

Aho amakuru yakuwe

Helicoprion (en.wikipedia.org)
Helicoprion - The Australian Museum (australian.museum)
Helicoprion in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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