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Karata ya dino No. 0073 mo go 2 027

Alexornis

Leina le raya: “Alex's ancestral bird”1

E jele: NamaDinonyane tsa ntlhaBofelo jwa Cretaceous

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.1 3

E tshetse

dimilione tsa dingwaga di le 86 go ya go 84 tse di fetileng3

Bofelo jwa Cretaceous

Difosili di fitlhetswe kwa

Southwest of El Rosario, Baja California, Mexico (La Bocana Roja Formation)3 1

Bokete

0.0356 kg (0 lb)1

Bonako jo bogolo

e ka nna 22 km/h (14 mph)

Go fofa, kakanyo

E tshetse leng?

Triassic

Jurassic

Cretaceous

dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le kgolo go le kae?

E ne e le bokete go le kae?

bokete jaaka dibanana di le 0.5

bofefo go feta katse ya mo gaee ne e ka fofa go kgabaganya lebala lotlhe la kgwele ya dinao mo metsotswaneng e le 17

Alexornis e ne e le kgolo go le kae fa e bapisiwa le WENA?

Ke dipalo fela mo sebatling sa gago. Ga go sepe se se bolokwang kgotsa se se romelwang gope.

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)

Alexornis e ka nna 22 km/h (14 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

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

Setshwantsho sa Alexornis se se dirilweng ke AI — Setshwantsho se se dirilweng ke AI sa kafa Alexornis 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.

o botsitse

Dipotso tse di botswang thata ka ga 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

Mothubi wa ditlhamane

Tlhamane: Some people thought Alexornis was a modern bird ancestor.

Boammaaruri: Actually, Alexornis is an enantiornithine, a group of ancient birds that went extinct with the dinosaurs.1

Ya baitseanape ba didino

Leina la saense: Alexornis
Leina le neilwe ke: Brodkorb 19763
Setlhopha: Dinonyane tsa ntlha
Lelapa / clade: Alexornithidae3
Thulaganyo: Theropoda > Avialae3
Bogolo jwa matlapa: 86 go ya go 84 dimilione tsa dingwaga (Santonian)3
Dibopego tsa matlapa: La Bocana Roja3
Dinaga: Mekesiko3
Direkoto tsa difosili: 1 mo The Paleobiology Database3
Go fitlhelwa: 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.1 2
Go sa ntse go ganetsanwa: Scientists are still unsure exactly how Alexornis is related to other enantiornithine birds, especially those from South America and Central Asia.1

Kwa dintlha di tswang teng

Alexornis (en.wikipedia.org)
repository.si.edu (repository.si.edu)
Alexornis in The Paleobiology Database (CC BY 4.0): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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