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Gretcheniao

Izenaren esanahia: “Gretchen's bird”3 1

Jaten zuen: HaragiaLehen hegaztiakBehe Kretazeoa

Gretcheniao was a small, feathered bird that lived about 125 million years ago in what is now China. It had strong teeth and sharp claws, and it probably hunted for food on the ground. This bird could fly, but not for very long distances!3 2

Bizi izan zen

Duela 126 eta 120 milioi urte artean3

Behe Kretazeoa

Fosilak hemen aurkitu dira:

Fossils were found in the Yixian Formation, near Huludao City in Liaoning Province, China.3 1

Luzera

0,3 eta 0,5 m artean (1 eta 1,6 ft artean)1

Pisua

0,19 kg eta 0,282 kg artean (0 eta 1 lb artean)1

Altuera

0,23 m (0,8 ft)

kalkulua

Abiadura maximoa

35 km/h inguru (22 mph)

Hegan egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Zein altua zen?

kalkulua

Zein astuna zen?

2,5 banana bezain astun

bata bestearen atzean jarritako 3 banana bezain luzeetxeko katu bat baino arinagoailaran jarritako 16 eraikuntza-pieza bezain luzeaulki baten azpitik ibiltzeko bezain txikiafutbol zelai oso bat zeharkatu zezakeen hegan 11 segundotan

Zein handia zen Gretcheniao ZUREKIN alderatuta?

Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.

Zein azkarra zen?

Pertsona bat oinez 5 km/h inguru (3 mph)

Haur bat bizikletan 12 km/h inguru (7 mph)

Gretcheniao 35 km/h inguru (22 mph)

Zaldi bat lauhazka 65 km/h inguru (40 mph)

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Gretcheniao had a very long hand bone called a carpometacarpus, the longest of any of its relatives, even though its upper arm bone was only the third largest.1

Its breastbone had special projections that pointed backward and to the sides, which helped support its flight muscles.1

Gretcheniao's toes had long, curved claws, perfect for grabbing onto branches or prey.1

Scientists think Gretcheniao flew by flapping its wings continuously, but it could not fly for long distances, similar to modern chickens or quails.2 1

The fossil of Gretcheniao was so well preserved that some of its feathers left dark marks on the rock, especially around its neck and wing.1

Gretcheniao had a strong beak and thick lower jaw, which helped it bite into tough food.1

Gretcheniao: AAk egindako irudia — Gretcheniao nolakoa izan zitekeen erakusten duen AAk egindako irudia, ordenagailu batek zientzialariek dakitenetik sortua. Asmakizun bat da: benetako animalia desberdina izan zitekeen, eta inork ez daki zein ziren bere benetako koloreak.

Mito-hauslea

Mitoa: Some people think Gretcheniao was a dinosaur like T. rex, but it was actually a bird.

Egia: Gretcheniao was a type of bird called an enantiornithine, which is a group of ancient birds that lived alongside dinosaurs. Birds are related to dinosaurs, but they are not the same as the giant meat-eaters.3 1

Dino adituentzat

Izen zientifikoa: Gretcheniao
Izendatzailea:: Chiappe et al. 20193
Taldea: Lehen hegaztiak
Familia / klada: Enantiornithes3
Sailkapena: Theropoda > Avialae3
Arroken adina: 126 eta 120 milioi urte artean (Barremian / Aptian)3
Arroka-formazioak: Yixian3
Herrialdeak: Txina3
Fosil-erregistroak: 1 The Paleobiology Database datu-basean3
Aurkikuntza: Gretcheniao was named in 2019 by scientists studying a nearly complete skeleton found in China. The fossil was named after Mrs. Gretchen Augustyn, who supported the Dinosaur Institute, and 'sinensis' means 'from China'.1
Oraindik eztabaidagai: Scientists are still debating how Gretcheniao and its close relatives are related to each other. Some think they all belong to one group, but others think they evolved separately.2 1

Datuak nondik datozen

New Bohaiornis-like bird from the Early Cretaceous of China: enantiornithine interrelationships and flight performance (dinodata.de)
New Bohaiornis -like bird from the Early Cretaceous of China: enantiornithine interrelationships and flight performance (pubmed.ncbi.nlm.nih.gov)
Gretcheniao in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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