Dino Wiki / Dayinoso zonna / Tiranosawulu

Kaadi ya dayinoso No. 1236 ku 2 027

Nanotyrannus

Erinnya litegeeza: “dwarf tyrant king”1

Yalyanga: EnnyamaTiranosawuluEnkomerero ya Kuretasi

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

Yabeerawo

emyaka obukadde 72 okutuuka ku 66 emabega6

Enkomerero ya Kuretasi

Ebisigalira byazuulibwa mu

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

Obuwanvu

5.2 m (17 ft)1

Obuzito

704 kg okutuuka ku ttani 1.2 (1,600 okutuuka ku 2,600 lb)1

Obugulumivu

1.8 m (5.9 ft)

kuteebereza

Sipiidi esinga

nga 50 km/h (31 mph)

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

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

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kuteebereza

Yali muzito kwenkana wa?

obuzito ng'obw'embwa 60

obuwanvu ng'embwa 5, ennyindo ku mukiraobuwanvu ng'amenvu 29 nga gaddiriŋŋanaobuzito ng'obwa wotamerooni 240obuzito ng'obw'abaana 63 ab'omu nnasaleobuzito ng'obw'abaana b'essomero 38obuzito ng'obwa ddubu enjeru 2.5yandidduse mita 100 mu sikonda 7.2 (omuntu asinga embiro yeetaaga 9.6)

Nanotyrannus yali munene atya bw'ogeraageranya ku GGWE?

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Yali wa mbiro kwenkana wa?

Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Nanotyrannus nga 50 km/h (31 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

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

Ekifaananyi kya Nanotyrannus ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

wabuuza

Ebibuuzo ebisinga okubuuzibwa ku 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

Omumenyi w'enfumo

Enfumo: Nanotyrannus is just a baby T. rex.

Amazima: 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

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Nanotyrannus
Yatuumibwa: Bakker et al. 19886
Ekibinja: Tiranosawulu
Ekika / ekibinja: Nanotyrannidae6
Engabanya: Theropoda > Tyrannosauroidea6
Emyaka gy'enjazi: emyaka obukadde 72 okutuuka ku 66 (Maastrichtian)6
Ensengeka z'enjazi: Hell Creek, Lance6
Ensi: Amerika6
Ebisigalira ebyazuulibwa: 6 mu The Paleobiology Database6
Okuzuulibwa: 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
Kikyakubaganyizibwako ebirowoozo: 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

Ebituufu gye biva

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): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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