Brontomerus
Brontomerus was a long-necked sauropod dinosaur with the biggest thigh muscles of any sauropod. Its name means 'thunder thigh' because its legs were so powerful. It lived about 110 million years ago in what is now Utah, USA.1
Yabayeho ryari?
Yanganaga ite?
Yari ndende ite?
Yari iremereye ite?
ndende nk'imodoka 3 ziparitse ku murongo๐ndende nk'imineke 78 ikurikiranye
iremereye nk'inzovu๐iremereye nk'imbuto 1200 za watermelon๐iremereye nk'ibyumba 8 by'amashuri byuzuye abana๐ปโโ๏ธiremereye nk'idubu 13 zo mu rubura๐yashoboraga kwiruka metero 100 mu masegonda 13 (umuntu wihuta kurusha abandi akenera 9,6)Brontomerus yanganaga ite ugereranyije NAWE?
Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.
Yihutaga ite?
Utuntu dushimishije
Brontomerus had a hip bone that was very deep and had a front part much larger than the back part. This gave it the largest leg muscles of any sauropod.1
Scientists think Brontomerus used its powerful thigh muscles to kick predators or to walk over rough, hilly ground.1
The fossils were found in 1994 and 1995, but some bones had been stolen by private collectors. The remaining bones were even used to hold down a plastic tarp.1
Only two partial skeletons are known: one from a juvenile and one from a much larger adult. The adult may have been the mother of the juvenile.1
Brontomerus lived during the Early Cretaceous period, about 110 million years ago, in what is now Utah.1
The species name Brontomerus mcintoshi honors John Stanton McIntosh, a physicist and expert on North American sauropods.1

Ibibazo bibazwa cyane kuri Brontomerus
?How big was Brontomerus?
The adult Brontomerus was about 14 meters (46 feet) long and weighed around 6 tonnes. The juvenile was about 4.5 meters (15 feet) long and weighed about 200 kilograms.1
?What did Brontomerus eat?
Brontomerus was a sauropod, so it was a plant-eating dinosaur. It likely ate plants like ferns and trees.12
?Why did Brontomerus have big thighs?
Scientists think Brontomerus used its powerful thigh muscles to kick predators like Utahraptor, or to walk over rough, hilly ground. The muscles were probably not for running fast.12
?Was Brontomerus bigger than T. rex?
Brontomerus was about 14 meters (46 feet) long, which is longer than a T. rex, but T. rex was heavier and more bulky. Brontomerus was a long-necked plant-eater, not a predator.1
Gusenya ibinyoma
Ibivugwa: Some people think Brontomerus was a fast runner because of its big leg muscles.
Ukuri: Scientists say the muscles were placed to move the leg forward powerfully or to kick, not for speed. The dinosaur probably used them for kicking or walking on rough terrain.1
Ku bazobereye muri dinozore
- Izina rya siyansi
- Brontomerus
- Yiswe na
- Taylor et al. 20113
- Itsinda
- Izifite amajosi maremare
- Umuryango / ishami
- Somphospondyli3
- Ishyirwa mu byiciro
- Sauropodomorpha > Sauropoda > Macronaria3
- Imyaka y'amabuye
- imyaka miliyoni 121 kugeza 100 (Aptian / Albian)3
- Inzego z'amabuye
- Cedar Mountain3
- Ibihugu
- Amerika3
- Ibisigazwa byanditswe
- 1 muri The Paleobiology Database3
- Ivumburwa
- Brontomerus was named in 2011 by Michael P. Taylor, Mathew J. Wedel, and Richard L. Cifelli. The fossils were collected from the Hotel Mesa Quarry in Utah in 1994 and 1995.13
- Biracyagibwaho impaka
- Scientists are not sure exactly how Brontomerus used its huge thigh muscles. It might have kicked predators, walked on steep hills, or even stood on two legs for a short time.1
Aho amakuru yakuwe
- Brontomerus (en.wikipedia.org)
- "Thunder Thighs" Dinosaur Thrashed Predators to Death? | National Geographic (nationalgeographic.com)
- Brontomerus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.
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