ບັດໄດໂນ ເລກທີ 1854 ຈາກ 2 027

Ugrunaaluk

ຊື່ໝາຍຄວາມວ່າ: “ancient grazer”1

ກິນ: ພືດໄດໂນປາກເປັດຄຣີເທເຊຍສຕອນປາຍ

Ugrunaaluk was a duck-billed dinosaur that lived in the ancient Arctic, where it was cold and dark for part of the year. It had a long, flat beak and hundreds of teeth for chewing tough plants. This dinosaur is special because it shows that some dinosaurs could survive in polar regions.5 1

ມີຊີວິດຢູ່

72 ຫາ 66 ລ້ານປີກ່ອນ5

ຄຣີເທເຊຍສຕອນປາຍ

ພົບຟອສຊິລທີ່

Liscomb Quarry, Prince Creek Formation, northern Alaska, USA5 1

ຄວາມຍາວ

9 ຫາ 12 m (30 ຫາ 39 ft)2 3

ນ້ຳໜັກ

4 ໂຕນ ຫາ 5,6 ໂຕນ (8 800 ຫາ 12 300 lb)2 3

ຄວາມສູງ

3,9 m (13 ft)

ຄ່າປະມານ

ຄວາມໄວສູງສຸດ

ປະມານ 21 ກມ/ຊມ (13 ໄມລ໌/ຊມ)

ແລ່ນ, ຄ່າປະມານ

ມັນມີຊີວິດຢູ່ເມື່ອໃດ?

ໄທຣແອສຊິກ

ຈູຣາສຊິກ

ຄຣີເທເຊຍສ

252 ລ້ານປີກ່ອນ20114566, ດາວເຄາະນ້ອຍຕົກ

ມັນໃຫຍ່ປານໃດ?

ມັນຍາວປານໃດ?

ມັນສູງປານໃດ?

ຄ່າປະມານ

ມັນໜັກປານໃດ?

ໜັກເທົ່າລົດຍົນ 4 ຄັນ

ຍາວເທົ່າລົດຍົນ 2,5 ຄັນຈອດຮຽງກັນຍາວເທົ່າກ້ວຍ 67 ໜ່ວຍຕໍ່ກັນໜັກປະມານຊ້າງໜັກເທົ່າໝາກໂມ 1100 ໜ່ວຍໜັກເທົ່ານັກຮຽນ 7 ຫ້ອງເຕັມໆໜັກເທົ່າໝີຂາວ 12 ໂຕແລ່ນ 100 ແມັດໄດ້ໃນ 17 ວິນາທີ (ຄົນທີ່ໄວທີ່ສຸດໃຊ້ 9.6)

Ugrunaaluk ໃຫຍ່ປານໃດ ເມື່ອທຽບກັບເຈົ້າ?

ແຄ່ຄິດໄລ່ໃນບຣາວເຊີຂອງເຈົ້າ. ບໍ່ມີຫຍັງຖືກບັນທຶກ ຫຼື ສົ່ງໄປໃສ.

ມັນໄວປານໃດ?

ຄົນຍ່າງ ປະມານ 5 ກມ/ຊມ (3 mph)

ເດັກຂີ່ລົດຖີບ ປະມານ 12 ກມ/ຊມ (7 mph)

Ugrunaaluk ປະມານ 21 ກມ/ຊມ (13 mph)

ມ້າກຳລັງຄວບ ປະມານ 65 ກມ/ຊມ (40 mph)

ເສືອຊີຕາ ປະມານ 100 ກມ/ຊມ (62 mph)

ເລື່ອງເທ່ໆ

ເລື່ອງໜ້າຮູ້ມ່ວນໆ

Ugrunaaluk lived in the Arctic about 69 million years ago, when the climate was much cooler than today, with average temperatures around 5 to 6°C.1

Most of the Ugrunaaluk fossils found are from young animals, not fully grown adults. Scientists think a whole herd of juveniles may have died together in a flood.1

Its name comes from the Iñupiaq language of Alaska. Ugruŋnaq means a grazing animal with grinding teeth, and -aluk means old, so Ugrunaaluk is 'ancient grazer'.1

Ugrunaaluk was a close relative of Edmontosaurus, but scientists found enough differences in its skull bones to give it its own name.1

The Liscomb bonebed where Ugrunaaluk was found has thousands of bones, mostly from this dinosaur, along with a few teeth from tyrannosaurs and other small dinosaurs.1

During the time of Ugrunaaluk, the Arctic had polar woodlands with flowering plants in the understory, and the days were dark for months in winter.1

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

ເຈົ້າຖາມມາ

ຄຳຖາມທີ່ຖືກຖາມຫຼາຍທີ່ສຸດກ່ຽວກັບ Ugrunaaluk

?How big was Ugrunaaluk?

Ugrunaaluk was about 7.6 to 9.1 meters (25 to 30 feet) long and stood about 1.8 to 2.1 meters (6 to 7 feet) tall at the hip.4

?What did Ugrunaaluk eat?

It was a plant-eater, with a flat beak and hundreds of teeth for chewing tough plants. Its jaw had at least 1,000 teeth with coarse surfaces perfect for pulverizing plants.4

?Did Ugrunaaluk live in the Arctic?

Yes, Ugrunaaluk lived in the ancient Arctic, above the Arctic Circle, about 69 million years ago. It endured cold and dark winters, with average temperatures around 5 to 6°C.4 1

?Was Ugrunaaluk a duck-billed dinosaur?

Yes, Ugrunaaluk belonged to the hadrosaur group of duck-billed dinosaurs. It had a long, flat beak and hundreds of teeth for chewing plants.4

?Why is Ugrunaaluk special?

Ugrunaaluk is special because it shows that some dinosaurs could survive in polar regions. It lived above the Arctic Circle, enduring months of darkness and cold.4

?How many teeth did Ugrunaaluk have?

Ugrunaaluk had at least 1,000 teeth in its jaw, with coarse surfaces perfect for pulverizing plants.4

?When did Ugrunaaluk live?

Ugrunaaluk lived about 69 million years ago, during the Late Cretaceous period, in the ancient Arctic.4

?Is Ugrunaaluk related to Edmontosaurus?

Yes, Ugrunaaluk is closely related to Edmontosaurus, but scientists found enough differences in its skull bones to give it its own name.1

?Where was Ugrunaaluk found?

Ugrunaaluk fossils were found in the Liscomb bonebed in the Prince Creek Formation of northern Alaska, along the Colville River.1

ໄຂຄວາມເຊື່ອຜິດ

ຄວາມເຊື່ອຜິດ: Ugrunaaluk is just a young Edmontosaurus and not a real separate dinosaur.

ຄວາມຈິງ: Scientists showed that Ugrunaaluk has unique skull features that make it a distinct species, even when accounting for age differences.1

ສຳລັບຜູ້ຊ່ຽວຊານໄດໂນ

ຊື່ວິທະຍາສາດ: Ugrunaaluk
ຕັ້ງຊື່ໂດຍ: Mori et al. 20165
ກຸ່ມ: ໄດໂນປາກເປັດ
ຄອບຄົວ / ເຄລດ: Hadrosauridae5
ການຈັດໝວດໝູ່: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae5
ອາຍຸຂອງຫີນ: 72 ຫາ 66 ລ້ານປີ (Maastrichtian)5
ຊັ້ນຫີນ: Prince Creek5
ປະເທດ: ສະຫະລັດ5
ບັນທຶກຟອສຊິລ: 1 ໃນ The Paleobiology Database5
ການຄົ້ນພົບ: Ugrunaaluk was named in 2016 by Hirotsugu Mori, Patrick Druckenmiller, and Gregory Erickson. The fossils were found in the Liscomb bonebed along the Colville River in northern Alaska.5 1
ຍັງຖົກຖຽງກັນຢູ່: Scientists are not sure exactly how big adult Ugrunaaluk grew, because almost all the fossils are from juveniles.1

ຂໍ້ມູນມາຈາກໃສ

Formation (lower Maastrichtian) of northern Alaska (app.pan.pl)
Edmontosaurus (en.wikipedia.org)
Edmontosaurus regalis (en.wikipedia.org)
New Dinosaur Species Probably Endured Snow and Darkness for Months on End | NOVA | PBS (pbs.org)
Ugrunaaluk in The Paleobiology Database (CC BY 4.0): ອາຍຸ, ສະຖານທີ່, ຊັ້ນຫີນ, ການຈັດໝວດໝູ່.

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