Khadi la dino Na. 1158 mwa 2 027

Megapterygius

Dzina limatanthauza: “large wing”1

Ankadya: NyamaMamosasauriKumapeto kwa KretaseKwenikweni si dainoso

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

Mfundo yosangalatsa: chokwawa cha m'nyanja ichi chinkasambira pamene madainoso ankayenda pamtunda. Aliyense amazitcha madino, koma zinali nthambi ina ya zokwawa.

Ankakhala

zaka 84 mpaka 66 miliyoni zapitazo4

Kumapeto kwa Kretase

Mafosili apezeka ku

Wakayama Prefecture, Japan1

Utali

6 m (20 ft)1

Kulemera

150 kg mpaka 450 kg (331 mpaka 992 lb)3

Liwiro lalikulu kwambiri

pafupifupi 38 km/h (24 mph)

Kusambira, kuyerekeza

Ankakhala liti?

Triasiki

Jurasiki

Kretase

Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali wamkulu bwanji?

Anali wautali bwanji?

Ankalemera bwanji?

wolemera ngati agalu 22

wautali ngati agalu 6 otsatizana mphuno ndi mchirawautali ngati nthochi 33 zotsatizanawolemera ngati mavwende 90wolemera ngati ana a sukulu ya mkaka 24wolemera ngati ana a sukulu 14akanatha kusambira utali wa dziwe lalikulu losambira (50 m) m'masekondi 4.7

Megapterygius anali wamkulu bwanji poyerekeza ndi IWEYO?

Ndi masamu chabe mu msakatuli wako. Palibe chimene chimasungidwa kapena kutumizidwa kwina kulikonse.

Anali ndi liwiro lotani?

Munthu akuyenda pafupifupi 5 km/h (3 mph)

Mwana pa njinga pafupifupi 12 km/h (7 mph)

Megapterygius pafupifupi 38 km/h (24 mph)

Hatchi ikuthamanga pafupifupi 65 km/h (40 mph)

Kakwiyo pafupifupi 100 km/h (62 mph)

zinthu zosangalatsa

Mfundo zosangalatsa

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

Chithunzi cha Megapterygius chopangidwa ndi AI — Chithunzi cha momwe Megapterygius mwina ankaonekera, chopangidwa ndi kompyuta kuchokera pa zomwe asayansi amadziwa. Ndi kungoyerekeza: nyama yeniyeniyo mwina inkaoneka mosiyana, ndipo palibe amene akudziwa mitundu yake yeniyeni.

mwafunsa

Mafunso ofunsidwa kwambiri okhudza 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

Kwa akatswiri a madino

Dzina la sayansi: Megapterygius
Anapatsidwa dzina ndi: Konishi et al. 20234
Gulu: Mamosasauri
Banja / kladi: Mosasauridae4
Magawidwe a sayansi: Mosasauroidea4
Zaka za miyala: zaka 84 mpaka 66 miliyoni (Campanian / Maastrichtian)4
Mapangidwe a miyala: Toyajo4
Mayiko: Japani4
Zolemba za mafosili: 1 mu The Paleobiology Database4
Kupezeka: 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
Akukambiranabe: 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

Kumene mfundo zimachokera

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): zaka, malo, mapangidwe a miyala, magawidwe a sayansi.

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