Avimaia

Lebitso le bolela: “bird mother”1

E jele: NamaDinonyana tsa peleKretase ya Pele

Avimaia was a small bird that lived about 120 million years ago. It is special because scientists found an egg still inside its body. This helps us learn how ancient birds had babies.2 1

E phetse

dilemo tse dimilione tse 121 ho isa ho 113 tse fetileng2

Kretase ya Pele

Difosili di fumanwe ho

Changma, Yumen, 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)

Avimaia 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

Avimaia is the only fossil bird ever found with an unlaid egg still inside its body.1

The eggshell of Avimaia was very thin and had multiple layers. Scientists think this happened because the egg stayed too long inside the mother.1

Avimaia's leg bones contain medullary bone. This is a special tissue that only female birds make when they are ready to lay eggs.1

The egg of Avimaia was flattened and measured about 5.2 square centimeters.1

Avimaia lived during the Early Cretaceous period, about 121 to 113 million years ago.2

The name Avimaia means 'bird mother' in Latin, because the fossil is a female with an egg.1

Setshwantsho sa Avimaia se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Avimaia 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: Avimaia
E rehilwe ke: Bailleul et al. 20192
Sehlopha: Dinonyana tsa pele
Lelapa / leloko: Enantiornithes2
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: Avimaia was named in 2019 by Alida Bailleul and her team. The fossil was found in the Xiagou Formation in China.2 1
E sa ntse e phehwa kgang: Scientists are not sure why the eggshell of Avimaia was so thin and had multiple layers. It might have been a health problem or a normal part of its reproduction.1

Moo dintlha di tswang teng

nature.com (nature.com)
Avimaia in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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