ບັດໄດໂນ ເລກທີ 0944 ຈາກ 2 027

Kaririavis

ຊື່ໝາຍຄວາມວ່າ: “Kariri bird, named after the Karirí people of northeastern Brazil”1

ກິນ: ຊີ້ນນົກຍຸກແລກຄຣີເທເຊຍສຕອນຕົ້ນ

Kaririavis was a tiny, sparrow-sized bird that lived about 115 million years ago in what is now Brazil. It is one of the oldest known birds of its group from the southern continents. Scientists know it from just one fossil foot, but that foot tells a big story!1 2

ມີຊີວິດຢູ່

120 ຫາ 113 ລ້ານປີກ່ອນ4

ຄຣີເທເຊຍສຕອນຕົ້ນ

ພົບຟອສຊິລທີ່

Pedra Branca Mine, Nova Olinda County, Ceará State, Brazil1

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)

Kaririavis ປະມານ 27 ກມ/ຊມ (17 mph)

ມ້າກຳລັງຄວບ ປະມານ 65 ກມ/ຊມ (40 mph)

ເສືອຊີຕາ ປະມານ 100 ກມ/ຊມ (62 mph)

ເລື່ອງເທ່ໆ

ເລື່ອງໜ້າຮູ້ມ່ວນໆ

Kaririavis is the oldest known ornithuromorph bird from Gondwana, the ancient southern supercontinent.1 2

Its name honors the Karirí people, an indigenous group from northeastern Brazil.1

The fossil is just a single foot, but it includes at least 10 preserved contour feathers, which are the feathers that cover a bird's body.1

Kaririavis had a very large, hooked claw on its second toe, which was about one third the length of its foot bone.1

Unlike many early birds that lived near water, Kaririavis's foot shape suggests it may have spent most of its time on the ground.1

The fossil was found in the Crato Formation, a famous fossil site in Brazil known for preserving soft tissues like feathers.1

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

ສຳລັບຜູ້ຊ່ຽວຊານໄດໂນ

ຊື່ວິທະຍາສາດ: Kaririavis
ຕັ້ງຊື່ໂດຍ: Carvalho et al. 20214
ກຸ່ມ: ນົກຍຸກແລກ
ຄອບຄົວ / ເຄລດ: Ornithuromorpha4
ການຈັດໝວດໝູ່: Theropoda > Avialae4
ອາຍຸຂອງຫີນ: 120 ຫາ 113 ລ້ານປີ (Aptian)4
ຊັ້ນຫີນ: Crato4
ປະເທດ: ບຣາຊິນ4
ບັນທຶກຟອສຊິລ: 1 ໃນ The Paleobiology Database4
ການຄົ້ນພົບ: Kaririavis was named by Carvalho and colleagues in 2021, based on a fossil foot found at Pedra Branca Mine in Brazil. The species name 'mater' means 'mother' in Latin, because it is the oldest ornithuromorph from South America.1 3
ຍັງຖົກຖຽງກັນຢູ່: Scientists are not sure whether Kaririavis lived on the ground or in the trees, because its foot has a mix of features that point to different lifestyles.1

ຂໍ້ມູນມາຈາກໃສ

A new ornithuromorph bird from the Lower Cretaceous of South America (igeo.ufrj.br)
Kaririavis (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Kaririavis in The Paleobiology Database (CC BY 4.0): ອາຍຸ, ສະຖານທີ່, ຊັ້ນຫີນ, ການຈັດໝວດໝູ່.

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