Alnashetri

O nome significa: “slender thighs”1

Comía: CarneDinos emplumados curiososCretáceo Inferior

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

Viviu

hai entre 113 e 110 millóns de anos4

Cretáceo Inferior

Fósiles atopados en

La Buitrera, Río Negro Province, Argentina1

Velocidade máxima

uns 30 km/h (19 mph)

Correr, estimación

Cando viviu?

Triásico

Xurásico

Cretáceo

Hai 252 millóns de anos20114566, o asteroide

Que velocidade alcanzaba?

Unha persoa camiñando uns 5 km/h (3 mph)

Un neno en bici uns 12 km/h (7 mph)

Alnashetri uns 30 km/h (19 mph)

Un cabalo ao galope uns 65 km/h (40 mph)

Un guepardo uns 100 km/h (62 mph)

cousas xeniais

Datos curiosos

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

Imaxe de Alnashetri feita con IA — Unha imaxe feita con IA de como podería ser Alnashetri, creada por un ordenador a partir do que saben os científicos. É unha suposición: o animal real podía ser diferente, e ninguén sabe as súas cores de verdade.

ti preguntaches

As preguntas máis frecuentes sobre 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

Para expertos en dinos

Nome científico: Alnashetri
Bautizado por: Makovicky et al. 20124
Grupo: Dinos emplumados curiosos
Familia / clado: Alvarezsauridae4
Clasificación: Theropoda > Alvarezsauridae4
Idade das rochas: de 113 a 110 millóns de anos (Albian)4
Formacións rochosas: Candeleros4
Países: Arxentina4
Rexistros fósiles: 2 na Paleobiology Database4
Descubrimento: 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
Aínda en debate: 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

De onde veñen os datos

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): idade, lugares, formacións rochosas, clasificación.

Cada dato desta páxina ten un número que leva á súa fonte. Se nos equivocamos nalgo, sentímolo, somos fans dos dinos, non unha revista científica. Escríbenos a [email protected] e arranxámolo.

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