ບັດໄດໂນ ເລກທີ 0078 ຈາກ 2 027

Alnashetri

ຊື່ໝາຍຄວາມວ່າ: “slender thighs”1

ກິນ: ຊີ້ນໄດໂນມີຂົນແປກໆຄຣີເທເຊຍສຕອນຕົ້ນ

Alnashetri was a tiny, feathered dinosaur that sprinted through the forests of ancient Argentina. It belonged to a group called alvarezsauroids, known for their long legs and bird-like feet. Scientists think it used its speed to chase after small prey.1

ມີຊີວິດຢູ່

113 ຫາ 110 ລ້ານປີກ່ອນ4

ຄຣີເທເຊຍສຕອນຕົ້ນ

ພົບຟອສຊິລທີ່

La Buitrera, Río Negro Province, Argentina1

ຄວາມໄວສູງສຸດ

ປະມານ 30 ກມ/ຊມ (19 ໄມລ໌/ຊມ)

ແລ່ນ, ຄ່າປະມານ

ມັນມີຊີວິດຢູ່ເມື່ອໃດ?

ໄທຣແອສຊິກ

ຈູຣາສຊິກ

ຄຣີເທເຊຍສ

252 ລ້ານປີກ່ອນ20114566, ດາວເຄາະນ້ອຍຕົກ

ມັນໄວປານໃດ?

ຄົນຍ່າງ ປະມານ 5 ກມ/ຊມ (3 mph)

ເດັກຂີ່ລົດຖີບ ປະມານ 12 ກມ/ຊມ (7 mph)

Alnashetri ປະມານ 30 ກມ/ຊມ (19 mph)

ມ້າກຳລັງຄວບ ປະມານ 65 ກມ/ຊມ (40 mph)

ເສືອຊີຕາ ປະມານ 100 ກມ/ຊມ (62 mph)

ເລື່ອງເທ່ໆ

ເລື່ອງໜ້າຮູ້ມ່ວນໆ

Alnashetri had a low ridge on its shin bone that separated the ankle joint from the outer part of the bone, a unique feature not seen in other coelurosaurs.1

The only known fossils are the hind legs of one individual, found in 2005 at a site called Hoyada de los Esfenodontes.1

Its name comes from the Tehuelche language and means 'slender thighs,' because its legs were long and slim.1

Alnashetri lived alongside the dromaeosaurid Buitreraptor, but the two dinosaurs are easy to tell apart by differences in their foot bones.1

The rocks where Alnashetri was found also contain fossils of ancient snakes, rhynchosaurs, and mammals, showing that La Buitrera was a rich ecosystem.1

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

ເຈົ້າຖາມມາ

ຄຳຖາມທີ່ຖືກຖາມຫຼາຍທີ່ສຸດກ່ຽວກັບ Alnashetri

?How big was Alnashetri?

Alnashetri was about the size of a crow, making it one of the smallest known dinosaurs.3

?What did Alnashetri eat?

It probably hunted small animals like lizards, snakes, mammals and invertebrates.3

?When did Alnashetri live?

Alnashetri lived during the Early Cretaceous, about 111 to 106 million years ago.1

?Where was Alnashetri found?

Its fossils were discovered in La Buitrera, Río Negro Province, Argentina, in the Candeleros Formation.1

ສຳລັບຜູ້ຊ່ຽວຊານໄດໂນ

ຊື່ວິທະຍາສາດ: Alnashetri
ຕັ້ງຊື່ໂດຍ: Makovicky et al. 20124
ກຸ່ມ: ໄດໂນມີຂົນແປກໆ
ຄອບຄົວ / ເຄລດ: Alvarezsauridae4
ການຈັດໝວດໝູ່: Theropoda > Alvarezsauridae4
ອາຍຸຂອງຫີນ: 113 ຫາ 110 ລ້ານປີ (Albian)4
ຊັ້ນຫີນ: Candeleros4
ປະເທດ: ອາເຈນຕິນາ4
ບັນທຶກຟອສຊິລ: 2 ໃນ The Paleobiology Database4
ການຄົ້ນພົບ: Alnashetri was first described by paleontologists Peter Makovicky, Sebastián Apesteguía, and Federico Gianechini in 2012. The name honors the nearby village of Cerro Policía, whose residents helped with fieldwork.1
ຍັງຖົກຖຽງກັນຢູ່: Scientists are not sure exactly where Alnashetri fits on the dinosaur family tree. Its ankle bones suggest it was an alvarezsauroid, but this evidence comes from only one part of the body and might be misleading.1 2

ຂໍ້ມູນມາຈາກໃສ

Alnashetri (en.wikipedia.org)
A New Coelurosaurian Theropod from the La Buitrera Fossil Locality of Río Negro, Argentina (ri.conicet.gov.ar)
'Exquisite' fossil of one of the smallest dinosaurs found in Argentina | Reuters (reuters.com)
Alnashetri in The Paleobiology Database (CC BY 4.0): ອາຍຸ, ສະຖານທີ່, ຊັ້ນຫີນ, ການຈັດໝວດໝູ່.

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