Dino Wiki / Dino nyinaa / Tete abakɔsɛm mmoa

Dino kad No. 0794 wɔ 2 027 mu

Helicoprion

Din no ase: “spiral saw”1

Ɔdii: NamTete abakɔsɛm mmoaPaleosoik, ansa na dinosɔɔ rebaƆnyɛ dinosɔɔ, nanso ɔyɛ tete abakɔsɛm aboa

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

Yei nyɛ dinosɔɔ, nanso ɔyɛ tete mmoa a wɔagye din sen biara no mu baako, enti ɔno nso nya baabi wɔ Dino Wiki mu.

Ɔtenaa ase

mfeɛ ɔpepem 290 kɔsi 270 a atwam1

Paleosoik, ansa na dinosɔɔ reba

Wɔhunuu fɔsil wɔ

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

Tenten

5 kɔsi 12 m (16 kɔsi 39 ft)1

Ntɛmntɛm a ɛsen biara

bɛyɛ 30 km/h (19 mph)

Nsuguareɛ, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Ansa na dinosɔɔ reba

Dinosɔɔ berɛ

Mmoa a wɔnom nufoɔ berɛ

mfeɛ ɔpepem 400 a atwam25266nnɛ

Na ne kɛseɛ yɛ sɛn?

Na ne tenten yɛ sɛn?

ne tenten te sɛ kaa 2.5 a wɔde agyina toatoa sone tenten te sɛ kwadu 67 a wɔde abɔ toatoa soanka ɔbɛtumi aguare nsuguarebea kɛseɛ (50 m) tenten wɔ sikɛn 6 mu

Helicoprion kɛseɛ yɛ sɛn sɛ wode toto WO ho a?

Akontaa nko ara wɔ wo browser mu. Yɛnkora biribiara so, na yɛmmfa biribiara nkɔ baabiara.

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Helicoprion bɛyɛ 30 km/h (19 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

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

Yei yɛ Helicoprion mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

wobisaeɛ

Nsɛm a wɔbisa bebree fa Helicoprion ho

?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

Atosɛm sɛefoɔ

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

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

Ma dino ho animdefoɔ

Nyansahu din: Helicoprion
Obi a ɔtoo din: Karpinsky 18993
Kuo: Tete abakɔsɛm mmoa
Abusua / kuo kɛseɛ: Helicoprionidae3
Nkyekyɛmu: Chondrichthyes > Eugeneodontiformes > Helicoprionidae3
Abotan no mfeɛ: mfeɛ ɔpepem 299 kɔsi 254 (Asselian / Wuchiapingian)3
Abotan nhyehyɛeɛ: Phosphoria, Assistance, Bone Spring3
Aman: Amerika, Kanada, Gyapan, Mɛksiko, Ɔstrelia, Kazakstan3
Fɔsil nkyerɛwee: 35 wɔ The Paleobiology Database mu3
Nhunumu: 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
Wɔda so gye ho akyinnye: Scientists are still unsure about the exact shape of Helicoprion's body, because almost no skeleton has been found, only tooth whorls.1 2

Baabi a nsɛm no firi

Helicoprion (en.wikipedia.org)
Helicoprion - The Australian Museum (australian.museum)
Helicoprion in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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