Ikarita ya dinozore nimero 1236 muri 2 027

Nanotyrannus

Izina risobanura: “dwarf tyrant king”1

Yaryaga: InyamaTiranozoreKiretase ya nyuma

Nanotyrannus was a small, fast cousin of T. rex that lived near the end of the dinosaur age. It had a slender skull, big arms, and long legs for chasing prey. Scientists argue whether it was a separate dinosaur or just a baby T. rex.1

Yabayeho

hashize imyaka miliyoni 72 kugeza 666

Kiretase ya nyuma

Ibisigazwa byabonetse muri

Hell Creek Formation and Lance Formation in Montana, South Dakota, North Dakota, and Wyoming, USA1 6

Uburebure

5,2 m (17 ft)1

Uburemere

704 kg kugeza toni 1,2 (1 600 kugeza 2 600 lb)1

Ubutumburuke

1,8 m (5,9 ft)

igereranya

Umuvuduko wo hejuru

nka 50 km/h (31 mph)

Kwiruka: Dececchi et al. 2020 (45 to 50 km/h)

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Ubutumburuke bwayo bwanganaga iki?

igereranya

Yari iremereye ite?

iremereye nk'imbwa 60

ndende nk'imbwa 5 zikurikiranyendende nk'imineke 29 ikurikiranyeiremereye nk'imbuto 240 za watermeloniremereye nk'abana 63 bo mu ishuri ry'incukeiremereye nk'abanyeshuri 38iremereye nk'idubu 2,5 zo mu ruburayashoboraga kwiruka metero 100 mu masegonda 7,2 (umuntu wihuta kurusha abandi akenera 9,6)

Nanotyrannus yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Nanotyrannus nka 50 km/h (31 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

Nanotyrannus was about 5.2 metres (17 feet) long, much smaller than T. rex which could be over 12 metres (40 feet).1

Its arms were longer and stronger than those of T. rex, both in absolute size and compared to its body.1

Nanotyrannus had small horns or crests right in front of its eyes, which T. rex did not have.1

It was probably a fast runner. Scientists think it could chase down prey more easily than the bulky T. rex.1

The first Nanotyrannus skull was found in 1942 and was originally thought to be a new species of Gorgosaurus.1

In 2025, scientists named a second species, Nanotyrannus lethaeus, based on a skeleton nicknamed 'Jane'.1

Nanotyrannus lived right up to the asteroid impact that killed the non-avian dinosaurs, about 66 million years ago.1

Ishusho ya Nanotyrannus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Nanotyrannus ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

wabajije

Ibibazo bibazwa cyane kuri Nanotyrannus

?Was Nanotyrannus a real dinosaur?

Yes. In 2025, scientists proved it was a separate dinosaur, not a baby T. rex.3 4

?How big was Nanotyrannus?

About 5.2 metres (17 feet) long. It weighed roughly 704 kilograms (1,552 pounds) for one species and up to 1,200 kilograms (2,600 pounds) for another.1

?When did Nanotyrannus live?

It lived about 67 to 66 million years ago, right up to the asteroid impact that killed the non-avian dinosaurs.1

?Could Nanotyrannus run fast?

Yes. It had long legs and was probably a fast runner, able to chase down prey more easily than the bulky T. rex.1

?Did Nanotyrannus have feathers?

Scientists are not sure. No feathers have been found on Nanotyrannus fossils, but many related dinosaurs had them.1

?What did Nanotyrannus eat?

It was a meat-eater. It probably hunted smaller dinosaurs and other animals, using its sharp teeth and strong arms.1

?How many teeth did Nanotyrannus have?

It had more teeth than T. rex. The front teeth were smooth, and the rest were serrated and blade-like.1 5

?Is Nanotyrannus bigger than T. rex?

No. Nanotyrannus was much smaller, about 5.2 metres (17 feet) long, while T. rex could be over 12 metres (40 feet) long.1

Gusenya ibinyoma

Ibivugwa: Nanotyrannus is just a baby T. rex.

Ukuri: Many scientists now think Nanotyrannus is a separate, smaller species. Studies in 2025 showed that some Nanotyrannus specimens were fully grown adults, not youngsters.1

Ku bazobereye muri dinozore

Izina rya siyansi: Nanotyrannus
Yiswe na: Bakker et al. 19886
Itsinda: Tiranozore
Umuryango / ishami: Nanotyrannidae6
Ishyirwa mu byiciro: Theropoda > Tyrannosauroidea6
Imyaka y'amabuye: imyaka miliyoni 72 kugeza 66 (Maastrichtian)6
Inzego z'amabuye: Hell Creek, Lance6
Ibihugu: Amerika6
Ibisigazwa byanditswe: 6 muri The Paleobiology Database6
Ivumburwa: The first Nanotyrannus skull was found in 1942 by David Hosbrook Dunkle in the Hell Creek Formation of Montana. In 1988, Robert Bakker, Michael Williams, and Philip Currie named it Nanotyrannus, meaning 'dwarf tyrant'.1 2
Biracyagibwaho impaka: Scientists still debate whether Nanotyrannus is a valid genus or just a juvenile Tyrannosaurus rex. New studies in 2025 support it being a real, separate dinosaur, but not everyone agrees.1

Aho amakuru yakuwe

Nanotyrannus (en.wikipedia.org)
Nanotyrannus, a new genus of pygmy tyrannosaur, from the latest Cretaceous of Montana (zenodo.org)
Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous | Nature (nature.com)
Nanotyrannus Confirmed: Dueling Dinosaurs Fossil Rewrites the Story of T. rex | Department of Biological Sciences (bio.sciences.ncsu.edu)
Agile and vicious Nanotyrannus was not just a teenage T. rex | Reuters (reuters.com)
Nanotyrannus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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