Dino kad No. 1158 wɔ 2 027 mu

Megapterygius

Din no ase: “large wing”1

Ɔdii: NamMosasɔɔKretasias AwieeɛNyansahu mu deɛ, ɔnyɛ dinosɔɔ

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

Asɛm a ɛyɛ anigye: ɛpo mu aboa a ɔwea yi guaree berɛ a dinosɔɔ nantew asase so. Obiara frɛ wɔn dino, nanso na wɔyɛ mmoa a wɔwea abusua foforɔ.

Ɔtenaa ase

mfeɛ ɔpepem 84 kɔsi 66 a atwam4

Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

Wakayama Prefecture, Japan1

Tenten

6 m (20 ft)1

Mu duru

150 kg kɔsi 450 kg (331 kɔsi 992 lb)3

Ntɛmntɛm a ɛsen biara

bɛyɛ 38 km/h (24 mph)

Nsuguareɛ, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ne kɛseɛ yɛ sɛn?

Na ne tenten yɛ sɛn?

Na ne mu yɛ duru sɛn?

ne mu duru te sɛ nkraman 22

ne tenten te sɛ nkraman 6 firi hwene kɔsi duane tenten te sɛ kwadu 33 a wɔde abɔ toatoa sone mu duru te sɛ watamɛlɔn 90ne mu duru te sɛ nkɔkɔaa sukuu mmofra 24ne mu duru te sɛ sukuu mmofra 14anka ɔbɛtumi aguare nsuguarebea kɛseɛ (50 m) tenten wɔ sikɛn 4.7 mu

Megapterygius 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)

Megapterygius bɛyɛ 38 km/h (24 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

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

Yei yɛ Megapterygius 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 Megapterygius ho

?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

Ma dino ho animdefoɔ

Nyansahu din: Megapterygius
Obi a ɔtoo din: Konishi et al. 20234
Kuo: Mosasɔɔ
Abusua / kuo kɛseɛ: Mosasauridae4
Nkyekyɛmu: Mosasauroidea4
Abotan no mfeɛ: mfeɛ ɔpepem 84 kɔsi 66 (Campanian / Maastrichtian)4
Abotan nhyehyɛeɛ: Toyajo4
Aman: Gyapan4
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu4
Nhunumu: 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
Wɔda so gye ho akyinnye: 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

Baabi a nsɛm no firi

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): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

Asɛm biara a ɛwɔ krataafa yi so wɔ nɔma a ɛkyerɛ baabi a ɛfiri. Sɛ yɛfom biribi a, kafra, yɛyɛ dino dɔfoɔ, yɛnyɛ nyansahu nsɛmma krataa. Ka kyerɛ yɛn wɔ [email protected] na yɛbɛsiesie.

Ɔkɔm de Rex! Dino Wiki yɛ agya bi adwuma a ɔyɛɛ maa ne babarima a ɔdɔ dino. Ɛyɛ kwa, dawurubɔ biara nni mu, akyidifoɔ biara nni mu. Mpanimfoɔ bɛtumi ama Rex aduane kakra, na aboa ama Dino Wiki atena intanɛt so.Ma Rex aduane