Dino Wiki / Dukan dinos / Tsuntsayen farko

Katin Dino No. 0900 na 2 027

Janavis

Sunan yana nufin: “tsuntsun Janus, bayan allahn Romawa na farko da karshe”1

Ya ci: NamaTsuntsayen farkoƘarshen Cretaceous

Janavis tsuntsu ne mai hakora wanda ya rayu a karshen zamanin Dinosaurs. Shi ne daya daga cikin tsuntsayen karshe da suke da hakora, kuma kashin kansa yana iya motsawa kamar na tsuntsayen zamani.1

Ya rayu

shekaru miliyan 72 zuwa 66 da suka wuce3

Ƙarshen Cretaceous

Burbushin halittu da aka samo a

Eben Emael, Belgium1

Faɗin fiffike

1.5 m (4.9 ft)1

kusan kafa 5

Nauyi

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

Mafi girman gudu

kusan 42 km/h (26 mph)

Tashi sama, ƙiyasi

Yaushe ya rayu?

Triassic

Jurassic

Cretaceous

Shekaru miliyan 252 da suka wuce20114566, dutsen sararin samaniya (asteroid)

Yaya girman sa yake?

Yaya faɗin fiffikensa yake?

Yaya nauyin sa yake?

nauyin ayaba 13

tsawon kyanwar gida 3 daga hanci zuwa wutsiyanauyinsa bai kai na kyanwar gida banauyin ayaba 13zai iya tashi daga wannan gefen filin ƙwallon ƙafa zuwa ɗayan cikin daƙiƙa 9

Yaya girman Janavis idan aka kwatanta da KAI?

Lissafi kawai a cikin burauzarka. Babu abin da ake adanawa ko aikawa ko'ina.

Yaya saurin sa yake?

Mutum yana tafiya kusan 5 km/h (3 mph)

Yaro a kan keke kusan 12 km/h (7 mph)

Janavis kusan 42 km/h (26 mph)

Doki mai gudu kusan 65 km/h (40 mph)

Damisa kusan 100 km/h (62 mph)

abubuwa masu ban sha'awa

Gaskiya mai ban sha'awa

Janavis ya rayu shekaru miliyan 66.8 da suka wuce, shekaru 800,000 kacal kafin dutsen sararin samaniya da ya kashe dinosaur.1

Kashin fikafikansa kogo ne kuma cike suke da iska, kamar na tsuntsayen zamani, wanda hakan ke sa su zama marasa nauyi don tashi.1

An gano burbushin kashin a wani ma'adinan Belgium a shekarar 2000 ta hannun wani mai farautar burbushin halittu mai suna Rudi Dortangs.1

Janavis yana da kashin kai wanda zai iya motsa babbar jaw dinsa sama da kasa, wani fasali na tsuntsayen zamani da ake kira neognathous palate.1

Masana kimiyya sun fara tunanin cewa wani yanki na kashin kansa kashin fikafiki ne, har sai binciken CT scan a shekarar 2021 ya nuna gaskiya.1

Janavis ya fi danginsa Ichthyornis girma, tare da fadin fikafikai na kusan mita 1.5 (kafa 5).1

Hoton Janavis da aka yi da AI — Hoton yadda Janavis zai iya kasancewa wanda aka yi da AI, kwamfuta ce ta yi shi daga abin da masana kimiyya suka sani. Hasashe ne: ainihin dabbar za ta iya zama daban, kuma babu wanda ya san ainihin launukanta.

ka tambaya

Tambayoyin da aka fi yi game da Janavis

?Yaya girman Janavis yake?

Janavis tsuntsu ne mai girma, tare da kiyasin fadin fikafikai na kusan mita 1.5 (kafa 5) da nauyin kusan kilogram 1.5 (laban 3.3).1 2

?Shin Janavis yana da hakora?

Eh, Janavis yana da hakora. Shi ne daya daga cikin tsuntsayen karshe masu hakora da suka taba rayuwa.1 2

?Yaushe Janavis ya rayu?

Janavis ya rayu shekaru miliyan 66.8 da suka wuce, a karshen zamanin Cretaceous, shekaru 800,000 kacal kafin bugun dutsen sararin samaniya.1

?Shin Janavis yana iya tashi?

Eh, Janavis yana iya tashi. Kashin fikafikansa kogo ne kuma cike suke da iska, kamar na tsuntsayen zamani, wanda hakan ke sa su zama marasa nauyi don tashi.1

Mai karyata tatsuniya

Tatsuniya: Dukan tsoffin tsuntsaye suna da kashin kai mai tauri kamar na dinosaurs.

Gaskiya: Janavis yana da kashin kai mai sassauci kamar na kaji da agwagwa na zamani, wanda ke nuna cewa kashin kai mai motsi ya samo asali tun da wuri.1

Don ƙwararrun dino

Sunan kimiyya: Janavis
Wanda ya ba da suna: Benito et al. 20223
Rukuni: Tsuntsayen farko
Iyali / rukuni: Ichthyornithes3
Rarrabewa: Theropoda > Avialae3
Zamanin duwatsu: shekaru miliyan 72 zuwa 66 (Maastrichtian)3
Tsarin duwatsu: Maastricht3
Kasashe: Belgium3
Rubutun burbushin halittu: 1 a cikin Bayanan Paleobiology3
Gano: Wani mai farautar burbushin halittu mai suna Rudi Dortangs ne ya tattara burbushin kashin a shekarar 2000 a Belgium. An fara ba da rahotonsa a shekarar 2002, kuma a shekarar 2022 masana kimiyya suka ba shi suna Janavis finalidens bayan binciken CT scan ya nuna ainihin asalinsa.1
Har yanzu ana muhawara: Masana kimiyya suna muhawara kan ko Janavis yana iya tashi kamar tsuntsayen zamani, saboda kashin fikafikansa cike suke da iska amma kashin kafadarsa ba shi da kabad din da ya dace.1

Inda bayanan suka fito

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): shekaru, wurare, nau'in duwatsu, rarrabawa.

Kowane bayani a wannan shafin yana da lamba da ke nuna tushensa. Idan mun yi kuskure, yi haƙuri, mu masoyan dino ne, ba mujallar kimiyya ba. Faɗa mana a [email protected] kuma za mu gyara shi.

Rex yana jin yunwa! Dino Wiki aikin uba ne don ɗansa mai son dino, kyauta ba tare da talla ko masu bin diddigi ba. Manya za su iya ba Rex abun ciye-ciye don taimaka wa shafin ya ci gaba da kasancewa a yanar gizo.Ba Rex abinci