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Ikhadi ledayinaso No. 0081 kwe-2 027

Alvarezsaurus

Igama lithetha: “Don Gregorio Alvarez's lizard”1

Yayitya: IzinambuzaneIidayinaso ezingaqhelekanga ezineentsibaiCretaceous yamva

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

Yaphila

86 ukuya ku-84 izigidi zeminyaka eyadlulayo3

iCretaceous yamva

Iifosili zifunyenwe:

Bajo de la Carpa Formation, Neuquén, Argentina3 1

Ubude

1 ukuya ku-1.4 m (3.3 ukuya ku-4.6 ft)1

Ubunzima

3 kg (7 lb)1

Ukuphakama

0.58 m (1.9 ft)

uqikelelo

Esona santya siphezulu

malunga ne-30 km/h (19 mph)

Ukubaleka, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Yayiphakame kangakanani?

uqikelelo

Yayinzima kangakanani?

inzima njengeebhanana ezingama-25

inde njengeekati zasekhaya ezingama-3, impumlo ukuya emsileniinde njengeebhanana ezingama-8 zilandelelanamalunga nobunzima bekati yasekhayainzima njengeebhanana ezingama-25ibinokubaleka iimitha ezili-100 ngemizuzwana engama-12 (oyena mntu ukhawulezayo udinga i-9,6)

Alvarezsaurus wayemkhulu kangakanani xa ethelekiswa NAWE?

Yimathematika nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwe naphi na.

Yayikhawuleza kangakanani?

Umntu ohambayo malunga ne-5 km/h (3 mph)

Umntwana ekhwele ibhayisikile malunga ne-12 km/h (7 mph)

Alvarezsaurus malunga ne-30 km/h (19 mph)

Ihashe elibaleka ngamandla malunga ne-65 km/h (40 mph)

Ingwenkala malunga ne-100 km/h (62 mph)

izinto ezimnandi

Iinyani ezimnandi

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

Umfanekiso owenziwe yi-AI: Alvarezsaurus — Umfanekiso owenziwe yi-AI obonisa indlela Alvarezsaurus esenokuba wayekhangeleka ngayo, wenziwe yikhompyutha ngokwento eyaziwa zizazinzulu. Kukuqikelela nje: esona silwanyana sinokuba sasikhangeleka ngenye indlela, kwaye akukho mntu waziyo imibala yaso yokwenyani.

ubuzile

Eyona mibuzo ibuzwa kakhulu: 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

Kwiingcali zeedayinaso

Igama lenzululwazi: Alvarezsaurus
Inikwe igama ngu:: Bonaparte 19913
Iqela: Iidayinaso ezingaqhelekanga ezineentsiba
Usapho / iclade: Alvarezsauridae3
Ukuhlelwa: Theropoda > Alvarezsauridae3
Ubudala bamatye: 86 ukuya ku-84 izigidi zeminyaka (Santonian)3
Izakhiwo zamatye: Bajo de la Carpa3
Amazwe: i-Argentina3
Iirekhodi zeefosili: 1 kwi-Paleobiology Database3
Ukufunyanwa: 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
Kusaxoxwa ngayo: 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

Apho iinyani zivela khona

Alvarezsaurus (en.wikipedia.org)
Alvarezsauridae (en.wikipedia.org)
Alvarezsaurus in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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