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Karete ya dinosaure No. 1191 ho tse 2 027

Mirarce

Lebitso le bolela: “wonderful winged messenger”1

E jele: NamaDinonyana tsa peleKretase ya Morao

Mirarce was a bird that lived about 76 million years ago. It was about the size of a turkey vulture and had strong wings and sharp talons for catching prey.1

E phetse

dilemo tse dimilione tse 84 ho isa ho 72 tse fetileng4

Kretase ya Morao

Difosili di fumanwe ho

Kaiparowits Formation, Utah, USA4 1

Boima

0.45 kg (1 lb)3

Bophahamo

0.6 m (2 ft)1

Lebelo le phahameng ka ho fetisisa

e ka bang 31 km/h (19 mph)

Ho fofa, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le kgolo hakae?

E ne e phahame hakae?

E ne e le boima hakae?

boima jwaloka dibanana tse 4

bobebe ho feta katse ya lapenge ne e ka fofa ho tshela lebala lohle la bolo ya maoto ka metsotswana e 12

Mirarce e ne e le kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ho browser ya hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Mirarce e ka bang 31 km/h (19 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

Mirarce is the most complete enantiornithine bird ever found in North America.2 1

Its fossil was discovered in 1992 but was not officially named until 2018.1

Mirarce had quill knobs on its ulna bone, which are bumps that help anchor flight feathers. This is the first time such knobs have been found in enantiornithine birds.2 1

It had a deeply keeled sternum (breastbone) and a narrow furcula (wishbone), features that improved its flight abilities.2

Mirarce lived during the Campanian age of the Late Cretaceous, about 76 to 74 million years ago.1

Its name combines Latin 'mirus' (wonderful) and the Greek messenger Arke, referring to its well-preserved flight-related features.1

Setshwantsho sa Mirarce se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Mirarce e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

o botsitse

Dipotso tse botswang haholo ka Mirarce

?Was Mirarce a dinosaur?

Yes, Mirarce was a bird, and birds are a type of dinosaur called avialan theropods. So it was a dinosaur, but not a non-avian dinosaur like T. rex.1

?How big was Mirarce?

Mirarce was about the size of a turkey vulture, growing to around 60 cm tall. It weighed about 0.45 kg.1 3

?What did Mirarce eat?

Mirarce was a raptorial predator, meaning it hunted and ate other animals. It had powerful talons and leg tendons, similar to modern birds of prey.1

?When did Mirarce live?

Mirarce lived during the Campanian age of the Late Cretaceous, about 76 to 74 million years ago.1

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Mirarce
E rehilwe ke: Atterholt et al. 20184
Sehlopha: Dinonyana tsa pele
Lelapa / leloko: Avisauridae4
Tlhophiso: Theropoda > Avialae4
Dilemo tsa mafika: dilemo tse dimilione tse 84 ho isa ho 72 (Campanian)4
Dibopeho tsa mafika: Kaiparowits4
Dinaha: Amerika4
Direkoto tsa difosili: 1 ho The Paleobiology Database4
Ho sibollwa: The fossil was collected in 1992 by Howard Hutchison in Utah. It was studied and named by Jesse Atterholt and colleagues in 2018, who called it Mirarce eatoni in honor of paleontologist Jeffrey Eaton.1
E sa ntse e phehwa kgang: Scientists are still debating how enantiornithine birds like Mirarce compare to modern birds in terms of flight abilities and evolutionary relationships.2

Moo dintlha di tswang teng

Mirarce (en.wikipedia.org)
The most complete enantiornithine from North America and a phylogenetic analysis of the Avisauridae (pmc.ncbi.nlm.nih.gov)
Rare fossil bird deepens mystery of avian extinctions (vcresearch.berkeley.edu)
Mirarce in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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