Grabauornis

Sunan yana nufin: “Tsuntsun Grabau”1

Ya ci: NamaTsuntsayen farkoFarkon Cretaceous

Grabauornis wani ƙaramin tsuntsu ne mai haƙora da ya rayu kimanin shekaru miliyan 125 da suka wuce a yankin da yanzu ake kira China. Ya ƙware wajen tashi kuma yana da wani gashin babban ɗan yatsa na musamman da ake kira alula wanda ya taimaka masa wajen juya hanya a sararin sama.1 2

Ya rayu

shekaru miliyan 126 zuwa 120 da suka wuce4

Farkon Cretaceous

Burbushin halittu da aka samo a

Lardin Liaoning, kasar Sin1 3

Tsawo

0.1 zuwa 0.3 m (0.3 zuwa 1 ft)3

an kiyasta tsawonsa daga girman manyan halittu a cikin PBDB (tsakanin 10 zuwa ƙasa da 100 cm)

Mafi girman gudu

kusan 27 km/h (17 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 tsawon sa yake?

tsawon tubalin wasa 9 a jerezai iya tashi daga wannan gefen filin ƙwallon ƙafa zuwa ɗayan cikin daƙiƙa 14

Yaya girman Grabauornis 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)

Grabauornis kusan 27 km/h (17 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

Grabauornis na cikin rukunin tsuntsaye na farko da ake kira enantiornitheans, waɗanda su ne tsuntsayen da suka fi yawa a lokacin zamanin dinosaur.1

Kashin hannunta na sama (humerus) yana da tsawon kashi 95 na kashin gaban hannunta (ulna), wanda hakan shi ne matsakaicin tsayi ga nau'in tsuntsayen nan na enantiornitheans, kuma hakan yana nuna cewa tana iya tashi sosai.1 2

An gano burbushin Grabauornis a cikin Yixian Formation, wani sanannen yanki na duwatsu wanda ya adana yawancin dinosaur masu gashin fuka-fukai da tsuntsayen farko masu ban al'ajabi.1 3

Grabauornis yana da alula, wato gashin fuka-fukai ƙarami a kan babban yatsansa wanda yake taimaka masa ya tashi a hankali kuma ya sauka daidai, kamar yadda fukafukan jirgin sama suke yi.1 2

Sun ba da sunan Grabauornis don girmama Amadeus William Grabau, wani sanannen masanin ilimin kasa da kuma masanin burbushin halittu wanda ya yi aiki a kasar Sin.1

Kashin kirjin sa yana da wani sashi mai ƙarfi da ake kira hypocleidium, wanda yake taimaka wa ƙirjinsa ya zama da ƙarfi don bugun fiffike da ƙarfi.1

Hoton Grabauornis da aka yi da AI — Hoton yadda Grabauornis 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.

Don ƙwararrun dino

Sunan kimiyya: Grabauornis
Wanda ya ba da suna: Dalsatt et al. 20144
Rukuni: Tsuntsayen farko
Iyali / rukuni: Euenantiornithes4
Rarrabewa: Theropoda > Avialae4
Zamanin duwatsu: shekaru miliyan 126 zuwa 120 (Barremian / Aptian)4
Tsarin duwatsu: Yixian4
Kasashe: China4
Rubutun burbushin halittu: 1 a cikin Bayanan Paleobiology4
Gano: Masana kimiyya Johan Dalsätt, Per Ericson, da Zhou Zhonghe ne suka ba Grabauornis suna kuma suka bayyana shi a shekarar 2014. An gano burbushin halittar kusa da birnin Lingyuan a lardin Liaoning, kasar Sin.1 2
Har yanzu ana muhawara: Masana har yanzu suna ta muhawara kan yadda Grabauornis ke da alaƙa da sauran tsuntsayen enantiornithean, tunda ƙasusuwansa suna nuna wani nau'i na musamman na halaye.1

Inda bayanan suka fito

Grabauornis (en.wikipedia.org)
A New Enantiornithes (Aves) from the Early Cretaceous of China (geojournals.cn)
PBDB Taxon (paleobiodb.org)
Grabauornis in The Paleobiology Database (CC BY 4.0): shekaru, wurare, nau'in duwatsu, rarrabawa.

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