Avimaia

Leina le raya: “bird mother”1

E jele: NamaDinonyane tsa ntlhaTshimologo ya Cretaceous

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 tshetse

dimilione tsa dingwaga di le 121 go ya go 113 tse di fetileng2

Tshimologo ya Cretaceous

Difosili di fitlhetswe kwa

Changma, Yumen, Gansu Province, northwestern China2 1

Bonako jo bogolo

e ka nna 27 km/h (17 mph)

Go fofa, kakanyo

E tshetse leng?

Triassic

Jurassic

Cretaceous

dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le bonako go le kae?

Motho yo o tsamayang e ka nna 5 km/h (3 mph)

Ngwana mo baesekeleng e ka nna 12 km/h (7 mph)

Avimaia e ka nna 27 km/h (17 mph)

Pitse e e sianang ka bonako e ka nna 65 km/h (40 mph)

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

dilo tse di monate

Dintlha tse di 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 se dirilweng ke AI — Setshwantsho se se dirilweng ke AI sa kafa Avimaia e ka tswang e ne e lebega ka gone, se dirilwe ke khomputara go ya ka se borasaense ba se itseng. Ke kakanyo fela: phologolo ya nnete e ka tswa e ne e lebega ka tsela e sele, mme ga go ope yo o itseng mebala ya yona ya nnete.

Ya baitseanape ba didino

Leina la saense: Avimaia
Leina le neilwe ke: Bailleul et al. 20192
Setlhopha: Dinonyane tsa ntlha
Lelapa / clade: Enantiornithes2
Thulaganyo: Theropoda > Avialae2
Bogolo jwa matlapa: 121 go ya go 113 dimilione tsa dingwaga (Aptian)2
Dibopego tsa matlapa: Xiagou2
Dinaga: Tšhaena2
Direkoto tsa difosili: 1 mo The Paleobiology Database2
Go fitlhelwa: Avimaia was named in 2019 by Alida Bailleul and her team. The fossil was found in the Xiagou Formation in China.2 1
Go sa ntse go ganetsanwa: 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

Kwa dintlha di tswang teng

nature.com (nature.com)
Avimaia in The Paleobiology Database (CC BY 4.0): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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