Dino Wiki / Madhino ose / Shiri dzekutanga

Kadhi redhino nhamba 0900 kubva pa 2 027

Janavis

Zita rinoreva: “Janus bird, after the Roman god of beginnings and endings”1

Raidya: NyamaShiri dzekutangaCretaceous Yekupedzisira

Janavis was a toothed bird that lived right at the end of the Age of Dinosaurs. It was one of the last birds with teeth, and its skull could move like a modern bird's skull.1

Raivapo

makore mamiriyoni 72 kusvika 66 apfuura3

Cretaceous Yekupedzisira

Mafosiri akawanikwa:

Eben Emael, Belgium1

Kupamhama kwemapapiro

1.5 m (4.9 ft)1

Huremu

1.12 kg kusvika 1.604 kg (2 kusvika 4 lb)1

Kumhanya kwepamusoro

kunenge 42 km/h (26 mph)

Kubhururuka, fungidziro

Rairarama rini?

Triassic

Jurassic

Cretaceous

makore mamiriyoni 252 apfuura20114566, dombo guru rakabva mudenga

Raiva hombe sei?

Mapapiro aro aiva akapamhama zvakadii?

Rairema zvakadii?

kurema semabhanana 13

kureba sekatsi dzemumba 3 kubva pamhino kusvika kumuswekureruka kupfuura katsi yemumbakurema semabhanana 13raigona kubhururuka richiyambuka nhandare yose yebhora mumasekonzi 9

Janavis 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)

Janavis kunenge 42 km/h (26 mph)

Bhiza richimhanya kunenge 65 km/h (40 mph)

Dindingwe kunenge 100 km/h (62 mph)

zvinhu zvinonakidza

Zvinonakidza

Janavis lived about 66.8 million years ago, just 800,000 years before the asteroid that killed the dinosaurs.1

Its wing bones were hollow and filled with air, like modern birds, making it lighter for flying.1

The fossil was found in a Belgian quarry in 2000 by an amateur fossil hunter named Rudi Dortangs.1

Janavis had a skull that could move its upper jaw up and down, a feature of modern birds called neognathous palate.1

Scientists first thought a piece of its skull was a wing bone, until a CT scan in 2021 showed the truth.1

Janavis was bigger than its relative Ichthyornis, with a wingspan of about 1.5 metres (5 feet).1

Mufananidzo wakagadzirwa neAI: Janavis — Mufananidzo wakagadzirwa neAI unoratidza kuti Janavis 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 Janavis

?How big was Janavis?

Janavis was a relatively large bird, with an estimated wingspan of about 1.5 metres (5 feet) and a weight of around 1.5 kilograms (3.3 pounds).1 2

?Did Janavis have teeth?

Yes, Janavis had teeth. It was one of the last toothed birds to ever live.1 2

?When did Janavis live?

Janavis lived about 66.8 million years ago, right at the end of the Cretaceous period, just 800,000 years before the asteroid impact.1

?Could Janavis fly?

Yes, Janavis could fly. Its wing bones were hollow and filled with air, like modern birds, making it lighter for flying.1

Mubvisi wengano

Ngano: All ancient birds had rigid skulls like dinosaurs.

Chokwadi: Janavis had a flexible skull like modern chickens and ducks, showing that movable skulls evolved early.1

Zvevanyanzvi vemadhino

Zita resainzi: Janavis
Akaripa zita:: Benito et al. 20223
Boka: Shiri dzekutanga
Mhuri / boka: Ichthyornithes3
Kurongwa kwemhuka: Theropoda > Avialae3
Zera rematombo: makore mamiriyoni 72 kusvika 66 (Maastrichtian)3
Mapoka ematombo: Maastricht3
Nyika: Belgium3
Zvinyorwa zvemafosiri: 1 mu The Paleobiology Database3
Kuwanikwa: The fossil was collected in 2000 by amateur palaeontologist Rudi Dortangs in Belgium. It was first reported in 2002, and in 2022 scientists named it Janavis finalidens after CT scans revealed its true identity.1
Zvichiri kupokanwa: Scientists debate whether Janavis could fly as well as modern birds, because its wing bones were very air-filled but its shoulder blade lacked a normal hook.1

Kunobva chokwadi

Janavis (en.wikipedia.org)
Bird beak evolved before dinosaur extinction | University of Cambridge (cam.ac.uk)
Janavis in The Paleobiology Database (CC BY 4.0): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.

Chokwadi chega chega papeji ino chine nhamba inoratidza kwachakabva. Kana takakanganisa chimwe chinhu, ruregerero, tiri vanoda madhino, kwete magazini yesainzi. Tiudze pa [email protected] tichazvigadzirisa.

Rex ane nzara! Dino Wiki ipurojekiti yababa yemwanakomana wavo anoda madhino, mahara, pasina kushambadza uye pasina zvinokutevera. Vakuru vanogona kupa Rex chekudyadya kuti vabatsire kuchengeta saiti iri pamhepo.Fudza Rex