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Karete ya dinosaure No. 1158 ho tse 2 027

Megapterygius

Lebitso le bolela: “large wing”1

E jele: NamaDimosasaureKretase ya MoraoHa se dinosaure ho ya ka saense

Megapterygius was a huge marine lizard that swam in the seas around Japan 72 million years ago. It had enormous flippers that were longer than its head, and scientists think it even had a dorsal fin like a shark!1 2

Ntlha e monate: sehahabi sena sa lewatle se ne se sesa ha didinosaure di ntse di tsamaya naheng. Bohle ba di bitsa didinosaure, empa e ne e le lekala le leng la dihahabi.

E phetse

dilemo tse dimilione tse 84 ho isa ho 66 tse fetileng4

Kretase ya Morao

Difosili di fumanwe ho

Wakayama Prefecture, Japan1

Bolelele

6 m (20 ft)1

Boima

150 kg ho isa ho 450 kg (331 ho isa ho 992 lb)3

Lebelo le phahameng ka ho fetisisa

e ka bang 38 km/h (24 mph)

Ho sesa, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le kgolo hakae?

E ne e le telele hakae?

E ne e le boima hakae?

boima jwaloka dintja tse 22

telele jwaloka dintja tse 6 ho tloha nkong ho isa mohatlengtelele jwaloka dibanana tse 33 di behilwe ka molaboima jwaloka mahapu a 90boima jwaloka bana ba kereshe ba 24boima jwaloka bana ba sekolo ba 14e ne e ka sesa bolelele ba letamo le leholo la ho sesa (50 m) ka metsotswana e 4.7

Megapterygius 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)

Megapterygius e ka bang 38 km/h (24 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

Megapterygius had rear flippers that were even longer than its front flippers, a feature only seen in one other mosasaur, Tylosaurus.1

Its flippers were longer than its skull, which is unique among mosasaurs with paddle-like limbs.1

The shape of its backbone suggests it had a dorsal fin, like a dolphin or shark, which would have helped it turn quickly in the water.1 2

Its skull was slightly wide around the eye sockets, giving it binocular vision that helped it hunt prey. This is only the second mosasaur known to have this ability.1

The fossil was found in 2006 by Akihiro Misaki, who was actually looking for ammonite fossils when he spotted a vertebra.1 2

More than 100 shark teeth were found around the Megapterygius skeleton, suggesting that sharks scavenged its body after it died.1

Megapterygius is the most complete mosasaur skeleton ever found in Japan or the northwestern Pacific.2

Setshwantsho sa Megapterygius se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Megapterygius 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 Megapterygius

?How big was Megapterygius?

Megapterygius was about 6 metres long, with a skull about 0.8 metres long. That is roughly the size of a large great white shark.1 2

?Did Megapterygius have a dorsal fin?

Scientists think it did. The shape of its backbone is like that of dolphins and porpoises, which have dorsal fins, and this would have helped it turn quickly in the water. It's the first mosasaur with evidence of a dorsal fin.1 2

?What did Megapterygius eat?

Scientists think it hunted large groups of small prey, like schools of fish. Its binocular vision and big flippers would have helped it catch them.1

?When did Megapterygius live?

Megapterygius lived about 72 million years ago, during the Late Cretaceous period, in the seas around Japan.1 2

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Megapterygius
E rehilwe ke: Konishi et al. 20234
Sehlopha: Dimosasaure
Lelapa / leloko: Mosasauridae4
Tlhophiso: Mosasauroidea4
Dilemo tsa mafika: dilemo tse dimilione tse 84 ho isa ho 66 (Campanian / Maastrichtian)4
Dibopeho tsa mafika: Toyajo4
Dinaha: Japane4
Direkoto tsa difosili: 1 ho The Paleobiology Database4
Ho sibollwa: The fossil was discovered in 2006 by Akihiro Misaki in Wakayama Prefecture, Japan. It was named Megapterygius wakayamaensis by Takuya Konishi and colleagues in 2023.1 2
E sa ntse e phehwa kgang: Scientists are still debating how Megapterygius used its four large flippers and tail fin together for swimming, since no modern animal has a similar body shape.2

Moo dintlha di tswang teng

Megapterygius (en.wikipedia.org)
UC paleontologist describes Wakayama 'blue dragon' that ruled prehistoric waters off Japan - University of Cincinnati: Founder of Co-op, Leader in Co-op | University of Cincinnati (uc.edu)
Megapterygius | Dino Encyclopedia (dinosaurmuseum.jp)
Megapterygius in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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