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Karete ya dinosaure No. 0794 ho tse 2 027

Helicoprion

Lebitso le bolela: “spiral saw”1

E jele: NamaDibopuwa tse tummeng tsa mehleng ya kgalePaleozoiki, pele ho didinosaureHa se dinosaure, empa ke sebopuwa se tummeng sa mehleng ya kgale

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

Ena ha se dinosaure, empa ke e nngwe ya diphoofolo tse tummeng ka ho fetisisa tsa mehleng ya kgale, kahoo le yona e fumana sebaka ho Dino Wiki.

E phetse

dilemo tse dimilione tse 290 ho isa ho 270 tse fetileng1

Paleozoiki, pele ho didinosaure

Difosili di fumanwe ho

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

Bolelele

5 ho isa ho 12 m (16 ho isa ho 39 ft)1

Lebelo le phahameng ka ho fetisisa

e ka bang 30 km/h (19 mph)

Ho sesa, kakanyo

E phetse neng?

Pele ho didinosaure

Mehla ya didinosaure

Mehla ya diphoofolo tse anyesang

Dilemo tse dimilione tse 400 tse fetileng25266kajeno

E ne e le kgolo hakae?

E ne e le telele hakae?

telele jwaloka dikoloi tse 2.5 tse pakilweng ka molatelele jwaloka dibanana tse 67 di behilwe ka molae ne e ka sesa bolelele ba letamo le leholo la ho sesa (50 m) ka metsotswana e 6

Helicoprion e ne e le kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ho browser ya hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Helicoprion e ka bang 30 km/h (19 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

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

Setshwantsho sa Helicoprion se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Helicoprion e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

o botsitse

Dipotso tse botswang haholo ka 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

Mosenyi wa ditshomo

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

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

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Helicoprion
E rehilwe ke: Karpinsky 18993
Sehlopha: Dibopuwa tse tummeng tsa mehleng ya kgale
Lelapa / leloko: Helicoprionidae3
Tlhophiso: Chondrichthyes > Eugeneodontiformes > Helicoprionidae3
Dilemo tsa mafika: dilemo tse dimilione tse 299 ho isa ho 254 (Asselian / Wuchiapingian)3
Dibopeho tsa mafika: Phosphoria, Assistance, Bone Spring3
Dinaha: Amerika, Kanada, Japane, Meksiko, Australia, Kazakhstan3
Direkoto tsa difosili: 35 ho The Paleobiology Database3
Ho sibollwa: 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
E sa ntse e phehwa kgang: Scientists are still unsure about the exact shape of Helicoprion's body, because almost no skeleton has been found, only tooth whorls.1 2

Moo dintlha di tswang teng

Helicoprion (en.wikipedia.org)
Helicoprion - The Australian Museum (australian.museum)
Helicoprion in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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