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Karete ya dinosaure No. 0081 ho tse 2 027

Alvarezsaurus

Lebitso le bolela: “Don Gregorio Alvarez's lizard”1

E jele: DikokwanyanaDidinosaure tse makatsang tse nang le mafofaKretase ya Morao

Alvarezsaurus was a tiny, fast-running dinosaur that lived in Argentina about 86 to 83 million years ago. It had a long tail and probably used its sharp claws to dig for insects. Scientists think it was one of the earliest members of a weird group of dinosaurs with strong, short arms.1 3

E phetse

dilemo tse dimilione tse 86 ho isa ho 84 tse fetileng3

Kretase ya Morao

Difosili di fumanwe ho

Bajo de la Carpa Formation, Neuquén, Argentina3 1

Bolelele

1 ho isa ho 1.4 m (3.3 ho isa ho 4.6 ft)1

Boima

3 kg (7 lb)1

Bophahamo

0.58 m (1.9 ft)

kakanyo

Lebelo le phahameng ka ho fetisisa

e ka bang 30 km/h (19 mph)

Ho matha, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le kgolo hakae?

E ne e le telele hakae?

E ne e phahame hakae?

kakanyo

E ne e le boima hakae?

boima jwaloka dibanana tse 25

telele jwaloka dikatse tsa lapeng tse 3 ho tloha nkong ho isa mohatlengtelele jwaloka dibanana tse 8 di behilwe ka molae batla e le boima jwaloka katse ya lapengboima jwaloka dibanana tse 25e ne e ka matha dimitara tse 100 ka metsotswana e 12 (motho ya lebelo ka ho fetisisa o hloka 9,6)

Alvarezsaurus 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)

Alvarezsaurus e ka bang 30 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

Alvarezsaurus was named after Don Gregorio Alvarez, an Argentine historian, not after a dinosaur scientist.1

Its third toe bone (metatarsal III) was the longest, and its fourth toe bone was unusually long too.1

Unlike many of its later relatives, Alvarezsaurus did not have its ankle bones (astragalus and calcaneum) fused together.1

The shoulder blade of Alvarezsaurus was curved and smaller than that of later alvarezsaurids like Mononykus.1

Its tail vertebrae had sharp undersides and triangular side projections, a feature shared with other alvarezsaurids.1

Alvarezsaurus is considered a basal (early) member of the alvarezsaurid family, which includes dinosaurs with strong, short arms and big claws.1

Setshwantsho sa Alvarezsaurus se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Alvarezsaurus 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 Alvarezsaurus

?How big was Alvarezsaurus?

Alvarezsaurus was small, about 1 to 1.4 metres (3.3 to 4.6 feet) long and weighed around 3 kilograms (6.6 pounds).1

?What did Alvarezsaurus eat?

It may have eaten insects. Its sharp claws and strong arms suggest it dug into termite or ant nests, though scientists are not completely sure.1 2

?Could Alvarezsaurus run fast?

Yes, its leg structure suggests it was a fast runner. It had long legs and a long tail for balance.1 2

?Did Alvarezsaurus have feathers?

No direct feather fossils are known for Alvarezsaurus, but a close relative, Shuvuuia, had downy, feather-like coverings, so it likely had feathers too.2

?When did Alvarezsaurus live?

It lived during the Late Cretaceous, about 86 to 83 million years ago, in what is now Argentina.1

?Was Alvarezsaurus a dinosaur?

Yes, Alvarezsaurus was a small theropod dinosaur, part of the alvarezsaurid family.1

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Alvarezsaurus
E rehilwe ke: Bonaparte 19913
Sehlopha: Didinosaure tse makatsang tse nang le mafofa
Lelapa / leloko: Alvarezsauridae3
Tlhophiso: Theropoda > Alvarezsauridae3
Dilemo tsa mafika: dilemo tse dimilione tse 86 ho isa ho 84 (Santonian)3
Dibopeho tsa mafika: Bajo de la Carpa3
Dinaha: Argentina3
Direkoto tsa difosili: 1 ho The Paleobiology Database3
Ho sibollwa: Alvarezsaurus was named by Argentine paleontologist José Bonaparte in 1991. The first fossils were found in the Bajo de la Carpa Formation in Argentina.1 3
E sa ntse e phehwa kgang: Scientists are not sure whether Alvarezsaurus was more closely related to birds or to other non‑bird dinosaurs. Some studies place it with early birds, but others keep it among the theropod dinosaurs.1

Moo dintlha di tswang teng

Alvarezsaurus (en.wikipedia.org)
Alvarezsauridae (en.wikipedia.org)
Alvarezsaurus in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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