ບັດໄດໂນ ເລກທີ 0924 ຈາກ 2 027

Jiuquanornis

ຊື່ໝາຍຄວາມວ່າ: “Jiuquan bird, named after the city near where it was found”1

ກິນ: ຊີ້ນນົກຍຸກແລກຄຣີເທເຊຍສຕອນຕົ້ນ

Jiuquanornis was a small, bird-like dinosaur that lived about 120 million years ago. It had a U-shaped wishbone and a sternum that looked like those of some modern ground birds. Scientists think it might have been a fast runner that ate meat.1 2

ມີຊີວິດຢູ່

121 ຫາ 113 ລ້ານປີກ່ອນ2

ຄຣີເທເຊຍສຕອນຕົ້ນ

ພົບຟອສຊິລທີ່

Changma Basin, Gansu Province, northwestern China2 1

ຄວາມໄວສູງສຸດ

ປະມານ 27 ກມ/ຊມ (17 ໄມລ໌/ຊມ)

ບິນໄດ້, ຄ່າປະມານ

ມັນມີຊີວິດຢູ່ເມື່ອໃດ?

ໄທຣແອສຊິກ

ຈູຣາສຊິກ

ຄຣີເທເຊຍສ

252 ລ້ານປີກ່ອນ20114566, ດາວເຄາະນ້ອຍຕົກ

ມັນໄວປານໃດ?

ຄົນຍ່າງ ປະມານ 5 ກມ/ຊມ (3 mph)

ເດັກຂີ່ລົດຖີບ ປະມານ 12 ກມ/ຊມ (7 mph)

Jiuquanornis ປະມານ 27 ກມ/ຊມ (17 mph)

ມ້າກຳລັງຄວບ ປະມານ 65 ກມ/ຊມ (40 mph)

ເສືອຊີຕາ ປະມານ 100 ກມ/ຊມ (62 mph)

ເລື່ອງເທ່ໆ

ເລື່ອງໜ້າຮູ້ມ່ວນໆ

Jiuquanornis is known from a single fossil that was first described in 2013. The fossil includes parts of the sternum, furcula, and forelimb.1

Its sternum had long, thin projections called trabeculae, which are also seen in modern ground-dwelling birds like chickens and tinamous.1

Jiuquanornis had a U-shaped furcula (wishbone) with a low angle of about 36 degrees, and it lacked a hypocleidium, a small projection found in some birds.1

Scientists think Jiuquanornis was a basal ornithuromorph, meaning it was an early relative of modern birds but not a direct ancestor.1

The fossil of Jiuquanornis was found in the Xiagou Formation, which is about 121 to 113 million years old, from the Early Cretaceous period.2 1

Jiuquanornis was named after the city of Jiuquan, which is near the fossil site. The species name niui honors Professor Shao-Wu Niu for his geological work.1

The fossil of Jiuquanornis was originally thought to be too incomplete to name, but scientists later decided it was different enough from other birds to be a new species.1

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

ສຳລັບຜູ້ຊ່ຽວຊານໄດໂນ

ຊື່ວິທະຍາສາດ: Jiuquanornis
ຕັ້ງຊື່ໂດຍ: Wang et al. 20132
ກຸ່ມ: ນົກຍຸກແລກ
ຄອບຄົວ / ເຄລດ: Ornithuromorpha2
ການຈັດໝວດໝູ່: Theropoda > Avialae2
ອາຍຸຂອງຫີນ: 121 ຫາ 113 ລ້ານປີ (Aptian)2
ຊັ້ນຫີນ: Xiagou2
ປະເທດ: ຈີນ2
ບັນທຶກຟອສຊິລ: 1 ໃນ The Paleobiology Database2
ການຄົ້ນພົບ: Jiuquanornis was named in 2013 by Wang and colleagues. The fossil, specimen GSGM-05-CM-021, was found in the Xiagou Formation near Changma in Gansu Province, China. It was first described as an unnamed bird in 2005, but later recognized as a new species.1 2
ຍັງຖົກຖຽງກັນຢູ່: Scientists are not sure whether Jiuquanornis lived on the ground or in the water, because its fossil is too incomplete to tell. Its sternum shape suggests it might have been a fast runner, but more fossils are needed.1

ຂໍ້ມູນມາຈາກໃສ

Previously Unrecognized Ornithuromorph Bird Diversity in the Early Cretaceous Changma Basin, Gansu Province, Northwestern China (journals.plos.org)
Jiuquanornis in The Paleobiology Database (CC BY 4.0): ອາຍຸ, ສະຖານທີ່, ຊັ້ນຫີນ, ການຈັດໝວດໝູ່.

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