Alnashetri

Naam beteken: “slender thighs”1

Het geëet: VleisSnaakse dino's met vereVroeë Kryt

Alnashetri was a tiny, feathered dinosaur that sprinted through the forests of ancient Argentina. It belonged to a group called alvarezsauroids, known for their long legs and bird-like feet. Scientists think it used its speed to chase after small prey.1

Het geleef

113 tot 110 miljoen jaar gelede4

Vroeë Kryt

Fossiele gevind in

La Buitrera, Río Negro Province, Argentina1

Topspoed

omtrent 30 km/h (19 mph)

Hardloop, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe vinnig was dit?

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

Alnashetri omtrent 30 km/h (19 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

Alnashetri had a low ridge on its shin bone that separated the ankle joint from the outer part of the bone, a unique feature not seen in other coelurosaurs.1

The only known fossils are the hind legs of one individual, found in 2005 at a site called Hoyada de los Esfenodontes.1

Its name comes from the Tehuelche language and means 'slender thighs,' because its legs were long and slim.1

Alnashetri lived alongside the dromaeosaurid Buitreraptor, but the two dinosaurs are easy to tell apart by differences in their foot bones.1

The rocks where Alnashetri was found also contain fossils of ancient snakes, rhynchosaurs, and mammals, showing that La Buitrera was a rich ecosystem.1

KI-prent van Alnashetri — 'n KI-prent van hoe Alnashetri dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.

julle het gevra

Mees gevraagde vrae oor Alnashetri

?How big was Alnashetri?

Alnashetri was about the size of a crow, making it one of the smallest known dinosaurs.3

?What did Alnashetri eat?

It probably hunted small animals like lizards, snakes, mammals and invertebrates.3

?When did Alnashetri live?

Alnashetri lived during the Early Cretaceous, about 111 to 106 million years ago.1

?Where was Alnashetri found?

Its fossils were discovered in La Buitrera, Río Negro Province, Argentina, in the Candeleros Formation.1

Vir dino-kenners

Wetenskaplike naam: Alnashetri
Benoem deur: Makovicky et al. 20124
Groep: Snaakse dino's met vere
Familie / klade: Alvarezsauridae4
Klassifikasie: Theropoda > Alvarezsauridae4
Ouderdom van die rotse: 113 tot 110 miljoen jaar (Albian)4
Rotsformasies: Candeleros4
Lande: Argentinië4
Fossielrekords: 2 in The Paleobiology Database4
Ontdekking: Alnashetri was first described by paleontologists Peter Makovicky, Sebastián Apesteguía, and Federico Gianechini in 2012. The name honors the nearby village of Cerro Policía, whose residents helped with fieldwork.1
Steeds omstrede: Scientists are not sure exactly where Alnashetri fits on the dinosaur family tree. Its ankle bones suggest it was an alvarezsauroid, but this evidence comes from only one part of the body and might be misleading.1 2

Waar die feite vandaan kom

Alnashetri (en.wikipedia.org)
A New Coelurosaurian Theropod from the La Buitrera Fossil Locality of Río Negro, Argentina (ri.conicet.gov.ar)
'Exquisite' fossil of one of the smallest dinosaurs found in Argentina | Reuters (reuters.com)
Alnashetri in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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