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Alexornis
Alexornis was a tiny bird that lived during the Late Cretaceous in what is now Mexico. It was about the size of a sparrow and probably ate insects or other small animals. This bird is special because it belongs to a group called enantiornithines, which had a backwards shoulder joint compared to modern birds.13
Yabayeho ryari?
Yanganaga ite?
Yari iremereye ite?
Alexornis yanganaga ite ugereranyije NAWE?
Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.
Yihutaga ite?
Utuntu dushimishije
Alexornis is known from only one partial skeleton, which includes shoulder, wing, and leg bones, but no skull.1
It weighed only about 35.6 grams, which is roughly the same as a modern sparrow.1
When first discovered, scientists thought Alexornis was an ancestor of kingfishers and woodpeckers, but later studies showed it was an enantiornithine bird.1
Enantiornithines like Alexornis had a reversed joint between the shoulder blade and the collarbone, which confused early researchers.1
The fossil was discovered in 1971 and formally described in 1976 by paleontologist Pierce Brodkorb.1
Alexornis lived during the Santonian age of the Late Cretaceous, about 85 to 83 million years ago.3
Ibibazo bibazwa cyane kuri Alexornis
?How big was Alexornis?
About the size of a sparrow, weighing roughly 35.6 grams.1
?What did Alexornis eat?
Scientists think it probably ate insects or other small animals, based on its small size and bird-like features.1
?Was Alexornis a dinosaur?
Alexornis was a bird, and birds are a type of dinosaur called avialan dinosaurs. So yes, it was a dinosaur.1
?When did Alexornis live?
It lived during the Late Cretaceous, about 85 to 83 million years ago.1
Gusenya ibinyoma
Ibivugwa: Some people thought Alexornis was a modern bird ancestor.
Ukuri: Actually, Alexornis is an enantiornithine, a group of ancient birds that went extinct with the dinosaurs.1
Ku bazobereye muri dinozore
- Izina rya siyansi
- Alexornis
- Yiswe na
- Brodkorb 19763
- Itsinda
- Inyoni za mbere
- Umuryango / ishami
- Alexornithidae3
- Ishyirwa mu byiciro
- Theropoda > Avialae3
- Imyaka y'amabuye
- imyaka miliyoni 86 kugeza 84 (Santonian)3
- Inzego z'amabuye
- La Bocana Roja3
- Ibihugu
- Megizike3
- Ibisigazwa byanditswe
- 1 muri The Paleobiology Database3
- Ivumburwa
- The only known fossil of Alexornis was found in 1971 near El Rosario, Baja California, Mexico. It was named and described in 1976 by Pierce Brodkorb, who thought it was an ancestor of modern kingfishers and woodpeckers.12
- Biracyagibwaho impaka
- Scientists are still unsure exactly how Alexornis is related to other enantiornithine birds, especially those from South America and Central Asia.1
Aho amakuru yakuwe
- Alexornis (en.wikipedia.org)
- repository.si.edu (repository.si.edu)
- Alexornis in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.
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Parasaurolophus