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Avisaurus

Zita rinoreva: “bird lizard”1

Raidya: NyamaShiri dzekutangaCretaceous Yekupedzisira

Avisaurus was a bird-like dinosaur that lived near the end of the age of dinosaurs. It was a fierce hunter with sharp claws, kind of like a tiny raptor. But it was actually an ancient bird, not a dinosaur!1

Raivapo

makore mamiriyoni 72 kusvika 66 apfuura4

Cretaceous Yekupedzisira

Mafosiri akawanikwa:

Montana and North Dakota, USA4 1

Huremu

1.2 kg kusvika 1.7 kg (3 kusvika 4 lb)1

Kumhanya kwepamusoro

kunenge 36 km/h (22 mph)

Kubhururuka, fungidziro

Rairarama rini?

Triassic

Jurassic

Cretaceous

makore mamiriyoni 252 apfuura20114566, dombo guru rakabva mudenga

Raiva hombe sei?

Rairema zvakadii?

kurema semabhanana 14

kureruka kupfuura katsi yemumbakurema semabhanana 14raigona kubhururuka richiyambuka nhandare yose yebhora mumasekonzi 10

Avisaurus raiva hombe sei kana richienzaniswa NEWE?

Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.

Raimhanya zvakadii?

Munhu achifamba kunenge 5 km/h (3 mph)

Mwana ari pabhasikoro kunenge 12 km/h (7 mph)

Avisaurus kunenge 36 km/h (22 mph)

Bhiza richimhanya kunenge 65 km/h (40 mph)

Dindingwe kunenge 100 km/h (62 mph)

zvinhu zvinonakidza

Zvinonakidza

Avisaurus lived about 68 to 66 million years ago, right before the dinosaurs went extinct.1

It was one of the largest enantiornithine birds, weighing up to 1.7 kilograms (3.7 pounds).1

The first fossil of Avisaurus was a single foot bone called a tarsometatarsus, found in Montana in 1975.1

Scientists first thought Avisaurus was a non-avian dinosaur, but later realized it was an ancient bird.1

Avisaurus had curved claws on its feet, similar to those of raptor dinosaurs, which helped it catch prey.1

It lived in swamps and river basins along the western shore of a huge sea that split North America.1

Mufananidzo wakagadzirwa neAI: Avisaurus — Mufananidzo wakagadzirwa neAI unoratidza kuti Avisaurus ringangodai raitaridzika sei, wakagadzirwa nekombiyuta kubva pane zvinozivikanwa nemasayendisiti. Ifungidziro chete: mhuka chaiyo ingangodai yaitaridzika zvakasiyana, uye hapana anoziva mavara ayo chaiwo.

wakabvunza

Mibvunzo inonyanya kubvunzwa nezve Avisaurus

?Was Avisaurus a dinosaur?

Yes, Avisaurus was a dinosaur. All birds are members of the dinosaur group, and Avisaurus was an enantiornithine bird.1

?How big was Avisaurus?

Avisaurus was a large enantiornithine bird. Avisaurus darwini weighed up to 1.2 kilograms (2.6 pounds), and Avisaurus archibaldi weighed up to 1.7 kilograms (3.7 pounds).1

?What did Avisaurus eat?

Avisaurus was a predator that likely ate other vertebrates. Its curved claws and foot bones suggest it could catch and carry prey, similar to modern hawks and owls.1 2

?When did Avisaurus live?

Avisaurus lived about 68 to 66 million years ago, during the Late Cretaceous period. It was one of the last enantiornithine birds before the non avian dinosaurs went extinct.1

?Where was Avisaurus found?

Avisaurus fossils have been found in the Hell Creek Formation of Montana, USA. The first fossil was a single foot bone collected in 1975 in Garfield County.1

?Could Avisaurus fly?

Yes, Avisaurus was a bird and could fly. Its foot bones show it was a skilled predator that could catch prey, similar to modern birds of prey.2 3

Mubvisi wengano

Ngano: Avisaurus was a dinosaur.

Chokwadi: Avisaurus was actually an ancient bird, part of a group called enantiornithines. It was a bird-like dinosaur, but not a non-avian dinosaur.1

Zvevanyanzvi vemadhino

Zita resainzi: Avisaurus
Akaripa zita:: Brett-Surman and Paul 19854
Boka: Shiri dzekutanga
Mhuri / boka: Avisauridae4
Kurongwa kwemhuka: Theropoda > Avialae4
Zera rematombo: makore mamiriyoni 72 kusvika 66 (Maastrichtian)4
Mapoka ematombo: Hell Creek4
Nyika: Amerika4
Zvinyorwa zvemafosiri: 2 mu The Paleobiology Database4
Kuwanikwa: Avisaurus was named in 1985 by paleontologists Brett-Surman and Paul. The first fossil, a foot bone, was found in 1975 by J. David Archibald in the Hell Creek Formation of Montana.1 4
Zvichiri kupokanwa: Scientists are not sure exactly how Avisaurus used its claws, whether for hunting or climbing.1

Kunobva chokwadi

Avisaurus (en.wikipedia.org)
Predatory birds from the same fossil formation as SUE the T. rex - Field Museum (fieldmuseum.org)
New enantiornithine diversity in the Hell Creek Formation and the functional morphology of the avisaurid tarsometatarsus (pmc.ncbi.nlm.nih.gov)
Avisaurus in The Paleobiology Database (CC BY 4.0): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.

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