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Zhongjianornis
Zhongjianornis was a pigeon-sized bird that lived in China during the Early Cretaceous, about 120 million years ago. It had a toothless beak and strong wing muscles, making it a good flier. This little bird helps scientists understand how early birds evolved and lost their teeth.12
ມັນມີຊີວິດຢູ່ເມື່ອໃດ?
ມັນໃຫຍ່ປານໃດ?
ມັນຍາວປານໃດ?
ມັນສູງປານໃດ?
ຄ່າປະມານ
ມັນໜັກປານໃດ?
Zhongjianornis ໃຫຍ່ປານໃດ ເມື່ອທຽບກັບເຈົ້າ?
ແຄ່ຄິດໄລ່ໃນບຣາວເຊີຂອງເຈົ້າ. ບໍ່ມີຫຍັງຖືກບັນທຶກ ຫຼື ສົ່ງໄປໃສ.
ມັນໄວປານໃດ?
ເລື່ອງໜ້າຮູ້ມ່ວນໆ
Zhongjianornis is one of the most primitive birds known to have completely lost its teeth, developing a beak instead.2
Its humerus had a large, robust deltopectoral crest, which was as wide as the bone shaft and more than one-third the total length of the humerus, indicating strong flight muscles.3
The only known fossil of Zhongjianornis is a nearly complete skeleton with some poorly preserved feather imprints.3
Zhongjianornis lived during the Aptian age of the Early Cretaceous, about 121 to 113 million years ago.3
Scientists initially thought Zhongjianornis was very primitive, but later research in 2012 suggested it was more similar to advanced euornithean birds like Chaoyangia.1
The species name yangi honors Yang Zhongjian, the founder of the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing.1
ຄຳຖາມທີ່ຖືກຖາມຫຼາຍທີ່ສຸດກ່ຽວກັບ Zhongjianornis
?How big was Zhongjianornis?
About the size of a pigeon. It was a small bird.1
?Did Zhongjianornis have teeth?
No, it had a toothless beak. It is one of the most primitive birds known to have completely lost its teeth.12
?What did Zhongjianornis eat?
Scientists are not sure, but its toothless beak suggests it may have eaten seeds or small insects.1
ໄຂຄວາມເຊື່ອຜິດ
ຄວາມເຊື່ອຜິດ: Zhongjianornis was the most primitive toothless bird.
ຄວາມຈິງ: While initially thought to be very primitive, later analysis in 2012 showed that Zhongjianornis is more closely related to advanced euornithean birds, not the most primitive.1
ສຳລັບຜູ້ຊ່ຽວຊານໄດໂນ
- ຊື່ວິທະຍາສາດ
- Zhongjianornis
- ຕັ້ງຊື່ໂດຍ
- Zhou et al. 20104
- ກຸ່ມ
- ນົກຍຸກແລກ
- ຄອບຄົວ / ເຄລດ
- Ornithuromorpha4
- ການຈັດໝວດໝູ່
- Theropoda > Avialae4
- ອາຍຸຂອງຫີນ
- 121 ຫາ 113 ລ້ານປີ (Aptian)4
- ຊັ້ນຫີນ
- Jiufotang4
- ປະເທດ
- ຈີນ4
- ບັນທຶກຟອສຊິລ
- 1 ໃນ The Paleobiology Database4
- ການຄົ້ນພົບ
- Zhongjianornis was named and described by Zhou, Zhang, and Li in a paper published in January 2010 (though it appeared online in 2009). The only fossil, a nearly complete skeleton, was found at Jianchang in Liaoning Province, China.12
- ຍັງຖົກຖຽງກັນຢູ່
- Scientists still debate whether Zhongjianornis was a very primitive bird or a more advanced euornithean, due to conflicting interpretations of its fossil's anatomy.1
ຂໍ້ມູນມາຈາກໃສ
- Zhongjianornis (en.wikipedia.org)
- A new Lower Cretaceous bird from China and tooth reduction in early avian evolution (royalsocietypublishing.org)
- PBDB Taxon (paleobiodb.org)
- Zhongjianornis in The Paleobiology Database (CC BY 4.0): ອາຍຸ, ສະຖານທີ່, ຊັ້ນຫີນ, ການຈັດໝວດໝູ່.
ທຸກຂໍ້ມູນໃນໜ້ານີ້ມີຕົວເລກທີ່ຊີ້ໄປຫາແຫຼ່ງອ້າງອີງ. ຖ້າພວກເຮົາຜິດພາດ, ຂໍໂທດເດີ, ພວກເຮົາເປັນແຟນໄດໂນ ບໍ່ແມ່ນວາລະສານວິທະຍາສາດ. ບອກພວກເຮົາທີ່ [email protected] ແລ້ວພວກເຮົາຈະແກ້ໄຂ.
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