Kartu dino No. 0900 ci 2 027

Janavis

Tur bi mooy: “Janus bird, after the Roman god of beginnings and endings”1

Lekkoon: YàppPicc yu jëkk yiKretase bu mujj

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

Dundoon

am na 72 ba 66 milyoŋ at3

Kretase bu mujj

Fosil yu ñu gis ci

Eben Emael, Belgium1

Yaatuwaayu laaf

1,5 m (4,9 ft)1

Diisaay

1,12 kg ba 1,604 kg (2 ba 4 lb)1

Gaawaay bi gën a kawe

lu tollu ci 42 km/h (26 mph)

Naaw, jortu

Kañ la dundoon?

Triyaas

Jurasik

Kretase

Am na 252 milyoŋ at20114566, asteroyid bi

Naka la réyoon?

Naka la ay laafam yaatuwoon?

Naka la diisoon?

diis ni 13 banaana

gudd ni 3 muusu kër, bakkan ba geengën a woyof muusu kërdiis ni 13 banaanamënoon na naaw ci kaw teraŋ futbal bépp ci 9 segond

Naka la Janavis réyoon, bu ñu ko méngalee ak YAW?

Ay kalkil rekk ci sa navigatëer. Dara du ñu denc, dara du ñu yónne fenn.

Naka la gaawoon?

Nit kuy dox lu tollu ci 5 km/h (3 mph)

Xale bu nekk ci welo lu tollu ci 12 km/h (7 mph)

Janavis lu tollu ci 42 km/h (26 mph)

Fas buy daw bu gaaw lu tollu ci 65 km/h (40 mph)

Segg bu gaaw lu tollu ci 100 km/h (62 mph)

yëf yu neex

Xibaar yu neex

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

Nataalu Janavis bu ñu def ak IA — Nataal bu IA def la, muy wone ni Janavis mën a meloon, ordinatëer moo ko def ci li boroom xam-xam yi xam. Jortu kese la: rab bi ci dëgg mën na meloon neneen, te kenn xamul ay kulëëram yu dëgg.

yeen a laaj

Laaj yi ñu gën a laaj ci 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

Ku tas léeb yu dul dëgg

Léeb: All ancient birds had rigid skulls like dinosaurs.

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

Ngir ñi xam dino lool

Turu xam-xam: Janavis
Ku ko tudde: Benito et al. 20223
Kurél: Picc yu jëkk yi
Njaboot / klad: Ichthyornithes3
Klasifikasiyoŋ: Theropoda > Avialae3
Màggaayu doj yi: 72 ba 66 milyoŋ at (Maastrichtian)3
Formasiyoŋi doj: Maastricht3
Réew yi: Belsik3
Fosil yu ñu gis: 1 ci The Paleobiology Database3
Gisees: 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
Ñu ngi koy werante ba tey: 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

Fa xibaar yi jóge

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): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

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