ບັດໄດໂນ ເລກທີ 1158 ຈາກ 2 027

Megapterygius

ຊື່ໝາຍຄວາມວ່າ: “large wing”1

ກິນ: ຊີ້ນໂມຊາຊໍຄຣີເທເຊຍສຕອນປາຍຕາມຫຼັກວິຊາການ ບໍ່ແມ່ນໄດໂນເສົາ

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

ເລື່ອງໜ້າຮູ້: ສັດເລືອຄານທະເລໂຕນີ້ລອຍນ້ຳ ໃນຂະນະທີ່ໄດໂນເສົາຍ່າງຢູ່ເທິງບົກ. ທຸກຄົນເອີ້ນພວກມັນວ່າໄດໂນ, ແຕ່ພວກມັນເປັນສັດເລືອຄານອີກສາຍໜຶ່ງ.

ມີຊີວິດຢູ່

84 ຫາ 66 ລ້ານປີກ່ອນ4

ຄຣີເທເຊຍສຕອນປາຍ

ພົບຟອສຊິລທີ່

Wakayama Prefecture, Japan1

ຄວາມຍາວ

6 m (20 ft)1

ນ້ຳໜັກ

150 kg ຫາ 450 kg (331 ຫາ 992 lb)3

ຄວາມໄວສູງສຸດ

ປະມານ 38 ກມ/ຊມ (24 ໄມລ໌/ຊມ)

ລອຍນ້ຳ, ຄ່າປະມານ

ມັນມີຊີວິດຢູ່ເມື່ອໃດ?

ໄທຣແອສຊິກ

ຈູຣາສຊິກ

ຄຣີເທເຊຍສ

252 ລ້ານປີກ່ອນ20114566, ດາວເຄາະນ້ອຍຕົກ

ມັນໃຫຍ່ປານໃດ?

ມັນຍາວປານໃດ?

ມັນໜັກປານໃດ?

ໜັກເທົ່າໝາ 22 ໂຕ

ຍາວເທົ່າໝາ 6 ໂຕຕໍ່ກັນຈາກດັງຫາຫາງຍາວເທົ່າກ້ວຍ 33 ໜ່ວຍຕໍ່ກັນໜັກເທົ່າໝາກໂມ 90 ໜ່ວຍໜັກເທົ່າເດັກອະນຸບານ 24 ຄົນໜັກເທົ່ານັກຮຽນ 14 ຄົນລອຍໄດ້ຄວາມຍາວສະລອຍນ້ຳໃຫຍ່ (50 ມ) ໃນ 4,7 ວິນາທີ

Megapterygius ໃຫຍ່ປານໃດ ເມື່ອທຽບກັບເຈົ້າ?

ແຄ່ຄິດໄລ່ໃນບຣາວເຊີຂອງເຈົ້າ. ບໍ່ມີຫຍັງຖືກບັນທຶກ ຫຼື ສົ່ງໄປໃສ.

ມັນໄວປານໃດ?

ຄົນຍ່າງ ປະມານ 5 ກມ/ຊມ (3 mph)

ເດັກຂີ່ລົດຖີບ ປະມານ 12 ກມ/ຊມ (7 mph)

Megapterygius ປະມານ 38 ກມ/ຊມ (24 mph)

ມ້າກຳລັງຄວບ ປະມານ 65 ກມ/ຊມ (40 mph)

ເສືອຊີຕາ ປະມານ 100 ກມ/ຊມ (62 mph)

ເລື່ອງເທ່ໆ

ເລື່ອງໜ້າຮູ້ມ່ວນໆ

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

ຮູບ Megapterygius ທີ່ AI ສ້າງ — ຮູບທີ່ AI ສ້າງ ສະແດງວ່າ Megapterygius ອາດຈະມີໜ້າຕາແນວໃດ, ຄອມພິວເຕີສ້າງຂຶ້ນຈາກສິ່ງທີ່ນັກວິທະຍາສາດຮູ້. ມັນເປັນການຄາດເດົາ: ສັດໂຕແທ້ອາດຈະມີໜ້າຕາຕ່າງອອກໄປ, ແລະ ບໍ່ມີໃຜຮູ້ສີແທ້ຂອງມັນ.

ເຈົ້າຖາມມາ

ຄຳຖາມທີ່ຖືກຖາມຫຼາຍທີ່ສຸດກ່ຽວກັບ 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

ສຳລັບຜູ້ຊ່ຽວຊານໄດໂນ

ຊື່ວິທະຍາສາດ: Megapterygius
ຕັ້ງຊື່ໂດຍ: Konishi et al. 20234
ກຸ່ມ: ໂມຊາຊໍ
ຄອບຄົວ / ເຄລດ: Mosasauridae4
ການຈັດໝວດໝູ່: Mosasauroidea4
ອາຍຸຂອງຫີນ: 84 ຫາ 66 ລ້ານປີ (Campanian / Maastrichtian)4
ຊັ້ນຫີນ: Toyajo4
ປະເທດ: ຍີ່ປຸ່ນ4
ບັນທຶກຟອສຊິລ: 1 ໃນ The Paleobiology Database4
ການຄົ້ນພົບ: 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
ຍັງຖົກຖຽງກັນຢູ່: 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

ຂໍ້ມູນມາຈາກໃສ

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): ອາຍຸ, ສະຖານທີ່, ຊັ້ນຫີນ, ການຈັດໝວດໝູ່.

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