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Tianyuornis had teeth in both its upper and lower jaws, which is unusual for birds and helped scientists confirm that some ancient birds still had teeth.12
Its lower jaw (dentary) was straight, while other similar birds had a curved, S-shaped jaw. This unique feature helped scientists identify it as a new species.12
Tianyuornis was about the size of a modern phoebe, a small songbird, making it quite tiny compared to many dinosaurs.1
It had long hindlimbs (legs) compared to its forelimbs (wings), which suggests it was a good runner.12
The only known fossil is a nearly complete and articulated skeleton of a subadult, meaning it was not fully grown when it died.12
Tianyuornis lived in a lake environment, and its fossils were found in lake deposits.1

Mpo na bayebi ya badino
- Nkombo ya siansi
- Tianyuornis
- Nkombo epesamaki na
- Zheng et al. 20143
- Lisanga
- Bandeke ya liboso
- Libota / klade
- Hongshanornithidae3
- Klasifikasio
- Theropoda > Avialae3
- Mbula ya mabanga
- mbula milio 126 kino 121 (Barremian)3
- Milongo ya mabanga
- Yixian3
- Bikolo
- Sina3
- Bafosile oyo ekomami
- 1 na The Paleobiology Database3
- Ntango bamonaki yango
- Tianyuornis was named by Zheng Xiaoting and colleagues in 2014, based on a nearly complete skeleton found in the Yixian Formation in Inner Mongolia, China.13
- Naino bazali kowelana
- Scientists debate whether all members of the Hongshanornithidae family, which includes Tianyuornis, had teeth, but this new fossil helps confirm that they did.2
Esika makambo euti
- Tianyuornis (en.wikipedia.org)
- New Information on Hongshanornithidae (Aves: Ornithuromorpha) from a new subadult specimen (vertpala.ac.cn)
- Tianyuornis in The Paleobiology Database (CC BY 4.0): mbula, bisika, milongo ya mabanga, klasifikasio.
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