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Ikhadi ledayinaso No. 0206 kwe-2 027

Austrocheirus

Igama lithetha: “southern hand”1

Yayitya: InyamaIidayinaso ezitya inyamaiCretaceous yamva

Austrocheirus was a meat-eating dinosaur that lived in what is now Argentina during the Late Cretaceous. It was about as long as a school bus and had hands that were not tiny like those of its relatives. Scientists are still debating exactly what kind of theropod it was.1 2

Yaphila

84 ukuya ku-72 izigidi zeminyaka eyadlulayo4

iCretaceous yamva

Iifosili zifunyenwe:

Santa Cruz Province, Argentina (Pari Aike Formation, also called Cerro Fortaleza Formation)1 3

Ubude

5.5 ukuya ku-6.5 m (18 ukuya ku-21 ft)1

Ukuphakama

2 m (6.6 ft)

uqikelelo

Esona santya siphezulu

malunga ne-40 km/h (25 mph)

Ukubaleka, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Yayiphakame kangakanani?

uqikelelo

inde njengezinja ezingama-6, impumlo ukuya emsileniinde njengeebhanana ezingama-36 zilandelelanaibinokubaleka iimitha ezili-100 ngemizuzwana engama-9 (oyena mntu ukhawulezayo udinga i-9,6)

Austrocheirus 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)

Austrocheirus malunga ne-40 km/h (25 mph)

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

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

izinto ezimnandi

Iinyani ezimnandi

Austrocheirus is known only from a partial hand, a shin bone, foot bones, and some backbone pieces.1

Its name means 'southern hand' because its fossils were found in the southern part of South America.1

Unlike many other abelisauroids, Austrocheirus did not have tiny, shrunken forelimbs. Its hands were still full-sized.2

Some scientists think Austrocheirus might not be an abelisauroid at all. They say it could be a more general theropod whose exact family is unknown.1

The only known fossil of Austrocheirus was found on March 17, 2002, at a place called Hoyada Arroyo Seco in Argentina.2

A 2024 study suggested Austrocheirus might belong to a group called Berthasauridae, which are close relatives of abelisauroids.1

Umfanekiso owenziwe yi-AI: Austrocheirus — Umfanekiso owenziwe yi-AI obonisa indlela Austrocheirus 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: Austrocheirus

?How big was Austrocheirus?

Austrocheirus was a medium sized theropod, measuring about 5.5 to 6.5 metres (18 to 21 feet) long. That is roughly as long as a school bus.1

?Why is Austrocheirus called 'southern hand'?

Its name means 'southern hand' because its fossils were found in southern South America and only a partial hand was known at first.1

?Did Austrocheirus have small arms?

No. Unlike many of its abelisauroid relatives, Austrocheirus did not have tiny, shrunken forelimbs. Its hands were still full-sized.1 2

Kwiingcali zeedayinaso

Igama lenzululwazi: Austrocheirus
Inikwe igama ngu:: Ezcurra et al. 20104
Iqela: Iidayinaso ezitya inyama
Usapho / iclade: Noasauridae4
Ukuhlelwa: Theropoda > Ceratosauria4
Ubudala bamatye: 84 ukuya ku-72 izigidi zeminyaka (Campanian)4
Izakhiwo zamatye: Cerro Fortaleza4
Amazwe: i-Argentina4
Iirekhodi zeefosili: 1 kwi-Paleobiology Database4
Ukufunyanwa: Austrocheirus was named and described in 2010 by paleontologists Martin Ezcurra, Federico Agnolin, and Fernando Novas. The species name isasii honors Marcelo Pablo Isasi, who found and prepared the fossil.1 2
Kusaxoxwa ngayo: Scientists are not sure which group of theropods Austrocheirus belongs to. Some say it is an abelisauroid, others think it is a more primitive theropod, and a 2024 study placed it in a new group called Berthasauridae.1

Apho iinyani zivela khona

Austrocheirus (en.wikipedia.org)
Zootaxa, An abelisauroid dinosaur with a non-atrophied manus from the Late Cretaceous... (mapress.com)
PBDB Taxon (paleobiodb.org)
Austrocheirus in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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