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Khathune ya Dunkleosteus
Karete ya dinosaure No. 0550 ho tse 2ย 027

Dunkleosteus

Lebitso le bolela: “Dunkle's bone”1
E jele: NamaDibopuwa tse tummeng tsa mehleng ya kgalePaleozoiki, pele ho didinosaureHa se dinosaure, empa ke sebopuwa se tummeng sa mehleng ya kgale

Dunkleosteus was a giant armoured fish that swam in the oceans about 382 to 358 million years ago. It had thick bone plates on its head and front body, and it was one of the first big predators in the sea. It wasn't a dinosaur, but it was super scary!1

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 388 ho isa ho 359 tse fetileng2
Paleozoiki, pele ho didinosaure
Difosili di fumanwe ho
Fossils have been found in the United States (including Ohio, California, and Michigan), Canada (Ontario), and Latvia.12
Bolelele
4.1 ho isa ho 10 m (13 ho isa ho 33 ft)1
Boima
ditone tse 1 ho isa ho ditone tse 4 (2,200 ho isa ho 8,800 lb)1
Lebelo le phahameng ka ho fetisisa
e ka bang 25 km/h (16 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?

Dunkleosteus bolelele ba e ka bang 10 m (33 ft)Baesekele ya motho e moholo e ka bang 1.8 m (5.9 ft)Koloi e ka bang 4.5 m (15 ft)Tlou, phoofolo e kgolo ka ho fetisisa naheng kajeno e ka bang 6.5 m (21 ft)

E ne e le boima hakae?

boima jwaloka dikoloi tse 2.5
telele jwaloka dikoloi tse 2 tse pakilweng ka molatelele jwaloka dibanana tse 56 di behilwe ka molaboima jwaloka dintja tse 200boima jwaloka mahapu a 800boima jwaloka ditlelase tse feletseng tse 5 tsa bana ba sekoloboima jwaloka dibere tse tshweu tse 9e ne e ka sesa bolelele ba letamo le leholo la ho sesa (50 m) ka metsotswana e 7.2

Dunkleosteus 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?

dintho tse monate

Dintlha tse monate

1

Dunkleosteus had a four-bar linkage in its skull that let it open its jaws in just 20 milliseconds, as fast as a blink!1

2

Its bite force was estimated at up to 7,495 newtons (about 1,685 pounds), which is among the highest of any fish ever.1

3

Instead of teeth, Dunkleosteus had sharp, blade-like bony plates in its jaws that could cut through armoured prey.1

4

Fossils of Dunkleosteus are often found with boluses of fish bones, which are the undigested remains of its last meals.1

5

The armour plates on its head and front body were up to 7.6 cm (3 inches) thick in some places, but thinner elsewhere.1

6

Dunkleosteus might have been a fast swimmer, not slow as once thought, because it could catch fast fish like Orodus.1

E entswe ke AISetshwantsho sa Dunkleosteus se entsweng ke AI
Setshwantsho se entsweng ke AI, se bontshang kamoo Dunkleosteus 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 Dunkleosteus

?How big was Dunkleosteus?

The largest known species, Dunkleosteus terrelli, was probably about 3.4 metres (11 feet) long for typical adults, and up to 4.1 metres (13 feet) for exceptionally large individuals. Some older estimates were much bigger, but recent studies suggest these smaller sizes.1

?Did Dunkleosteus have teeth?

No, instead of teeth it had sharp, blade-like bony plates in its jaws that could cut through armoured prey. These blades even sharpened themselves as the fish opened and closed its mouth.13

?What did Dunkleosteus eat?

It ate armoured prey like ammonites and other placoderms, and could even catch fast-swimming fish like Orodus. Fossils show it sometimes regurgitated bones from its last meal.1

?How fast could Dunkleosteus open its mouth?

It could open its jaws in just 20 milliseconds and complete a feeding snap in 50 to 60 milliseconds, which is as fast as a blink. This helped it catch fast prey.4

?Was Dunkleosteus a dinosaur?

No, it was a giant armoured fish that lived in the oceans during the Devonian Period, long before dinosaurs existed. It belonged to a group called placoderms.1

?How strong was Dunkleosteus' bite?

Its bite force was estimated at up to 7,495 newtons, which is among the highest of any fish ever. That is strong enough to puncture armour.14

?Where have Dunkleosteus fossils been found?

Fossils have been found in the United States, Canada, Poland, Belgium, Morocco, and Russia. The largest collection is at the Cleveland Museum of Natural History in Ohio.1

?When did Dunkleosteus live?

It lived during the Late Devonian Period, about 382 to 358 million years ago. That is before the first dinosaurs appeared.1

?Could Dunkleosteus swim fast?

Yes, it might have been a fast swimmer, not slow as once thought. It could catch fast-swimming fish like Orodus, which suggests it was quick.1

?Why did Dunkleosteus have armour?

Its thick bone plates on the head and front body protected it from other predators and helped it hunt armoured prey. The plates were up to 7.6 cm (3 inches) thick in some places.1

Mosenyi wa ditshomo

Tshomo: Dunkleosteus was a dinosaur.

Nnete: Dunkleosteus was not a dinosaur. It was a fish, specifically an arthrodire placoderm, and it lived long before the first dinosaurs.1

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense
Dunkleosteus
E rehilwe ke
Newberry 18745
Sehlopha
Dibopuwa tse tummeng tsa mehleng ya kgale
Lelapa / leloko
Dunkleosteidae5
Tlhophiso
Placodermi > Phlyctaeniiformes > Dunkleosteidae5
Dilemo tsa mafika
dilemo tse dimilione tse 388 ho isa ho 359 (Givetian / Famennian)5
Dibopeho tsa mafika
Ohio Shale, Lost Burro, Tฤ“rvete5
Dinaha
Amerika, Latvia, Kanada5
Direkoto tsa difosili
7 ho The Paleobiology Database5
Ho sibollwa
The first fossils were found in 1867 by Jay Terrell, an amateur paleontologist, near Lake Erie in Ohio, USA. The species was named Dunkleosteus terrelli in 1956, honouring both David Dunkle and Jay Terrell.1
E sa ntse e phehwa kgang
Scientists still debate how Dunkleosteus fed. Some think it used suction to gulp prey, but a 2025 study suggests it actively bit and tore prey, and its bite force estimates might need to be revised.1

Moo dintlha di tswang teng

  1. Dunkleosteus (en.wikipedia.org)
  2. PBDB Taxon (paleobiodb.org)
  3. Meet Dunk: Ohioโ€™s Ancient Apex Predator (cmnh.org)
  4. Feeding mechanics and bite force modelling of the skull of Dunkleosteus terrelli , an ancient apex predator (pmc.ncbi.nlm.nih.gov)
  5. Dunkleosteus in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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