Guemesia

Naam beteken: “named after Martín Miguel de Güemes, an Argentine independence hero”1

Het geëet: VleisVleisvretende dino'sLaat Kryt

Guemesia was a small, meat-eating dinosaur that lived in what is now Argentina. It is one of the smallest abelisaurids ever found, about the size of a large dog. Its nearly complete braincase helped scientists learn a lot about this little predator.1 2

Het geleef

84 tot 66 miljoen jaar gelede4

Laat Kryt

Fossiele gevind in

Amblayo Valley, Salta Province, Argentina (Los Blanquitos Formation)1 4

Topspoed

omtrent 47 km/h (29 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)

Guemesia omtrent 47 km/h (29 mph)

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

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

cool goed

Prettige feite

Guemesia is known from only a single, nearly complete braincase, which is very rare for abelisaurids.1 2

It is one of the smallest abelisaurids ever discovered, much smaller than relatives like Carnotaurus.1 2

Unlike many other abelisaurids, Guemesia had no horns or bumps on its skull.2

Its skull roof was thin, and its parietal eminence was low and narrow, at the same level as the sagittal crest.2

Guemesia lived during the Late Cretaceous period, about 72 million years ago.1

It is the first definitive abelisaurid dinosaur found in northwestern Argentina.2

Guemesia belongs to the group Brachyrostra, which includes many other South American abelisaurids.1

KI-prent van Guemesia — 'n KI-prent van hoe Guemesia 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 Guemesia

?How big was Guemesia?

About the size of a large dog, making it one of the smallest abelisaurids known.1 3

?Did Guemesia have horns?

No. Unlike many other abelisaurids, Guemesia had no horns or bumps on its skull.1 2

?What did Guemesia eat?

It was a meat-eater, likely feeding on large dinosaurs like titanosaurs, using its powerful head and jaws instead of its tiny arms.3

?When did Guemesia live?

It lived during the Late Cretaceous period, about 72 million years ago, just before the dinosaurs went extinct.1 3

Vir dino-kenners

Wetenskaplike naam: Guemesia
Benoem deur: Agnolín et al. 20214
Groep: Vleisvretende dino's
Familie / klade: Abelisauridae4
Klassifikasie: Theropoda > Ceratosauria > Abelisauridae4
Ouderdom van die rotse: 84 tot 66 miljoen jaar (Campanian / Maastrichtian)4
Rotsformasies: Los Blanquitos4
Lande: Argentinië4
Fossielrekords: 1 in The Paleobiology Database4
Ontdekking: Guemesia was named in 2022 by paleontologist Federico Agnolín and colleagues. The fossil, a nearly complete braincase, was found in the Los Blanquitos Formation in Salta Province, Argentina.1 2
Steeds omstrede: Scientists are not sure exactly how big Guemesia was, because only its braincase has been found. Its small size might mean it was a juvenile or a particularly small species.1 2

Waar die feite vandaan kom

Guemesia (en.wikipedia.org)
First definitive abelisaurid theropod from the Late Cretaceous of Northwestern Argentina: Journal of Vertebrate Paleontology: Vol 41 , No 4 - Get Access (tandfonline.com)
New armless abelisaur dinosaur species discovered in Argentina | Natural History Museum (nhm.ac.uk)
Guemesia in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dino-aanhangers, nie 'n wetenskapjoernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

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