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Carta da dino nr. 1236 da 2 027

Nanotyrannus

Il num vul dir: “dwarf tyrant king”1

Mangiava: CharnTirannosaursCretacic tardiv

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

Viveva

avant 72 fin 66 milliuns onns6

Cretacic tardiv

Fossils chattads en

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

Lunghezza

5,2 m (17 ft)1

Paisa

704 kg fin 1,2 tonnas (1 600 fin 2 600 lb)1

Autezza

1,8 m (5,9 ft)

stima

Spertadad maximala

var 50 km/h (31 mph)

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

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant aut era el?

stima

Quant grev era el?

uschè grev sco 60 chauns

uschè lung sco 5 chauns dal nas a la cuauschè lung sco 29 bananas ina suenter l'autrauschè grev sco 240 melunasuschè grev sco 63 uffants da scolettauschè grev sco 38 scolarsuschè grev sco 2,5 urs polarspudess currer 100 meters en 7,2 secundas (il pli spert uman dovra 9,6)

Quant grond era Nanotyrannus cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Nanotyrannus var 50 km/h (31 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Nanotyrannus fatg cun IA — In maletg fatg cun IA che mussa co Nanotyrannus pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart 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

Chatschader da mitus

Mitus: Nanotyrannus is just a baby T. rex.

Vardad: 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

Per experts da dinos

Num scientific: Nanotyrannus
Numnà da: Bakker et al. 19886
Gruppa: Tirannosaurs
Famiglia / clada: Nanotyrannidae6
Classificaziun: Theropoda > Tyrannosauroidea6
Vegliadetgna da la crappa: 72 fin 66 milliuns onns (Maastrichtian)6
Formaziuns da crap: Hell Creek, Lance6
Pajais: USA6
Chats da fossils: 6 en The Paleobiology Database6
Scuverta: 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
Anc discutà: 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

Danunder che vegnan ils fatgs

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): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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