Jiuquanornis

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

E jele: NamaDinonyana tsa peleKretase ya Pele

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

E phetse

dilemo tse dimilione tse 121 ho isa ho 113 tse fetileng2

Kretase ya Pele

Difosili di fumanwe ho

Changma Basin, Gansu Province, northwestern China2 1

Lebelo le phahameng ka ho fetisisa

e ka bang 27 km/h (17 mph)

Ho fofa, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Jiuquanornis e ka bang 27 km/h (17 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

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

Setshwantsho sa Jiuquanornis se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Jiuquanornis e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Jiuquanornis
E rehilwe ke: Wang et al. 20132
Sehlopha: Dinonyana tsa pele
Lelapa / leloko: Ornithuromorpha2
Tlhophiso: Theropoda > Avialae2
Dilemo tsa mafika: dilemo tse dimilione tse 121 ho isa ho 113 (Aptian)2
Dibopeho tsa mafika: Xiagou2
Dinaha: Tjhaena2
Direkoto tsa difosili: 1 ho The Paleobiology Database2
Ho sibollwa: 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
E sa ntse e phehwa kgang: 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

Moo dintlha di tswang teng

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): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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