Nanotyrannus (meaning "dwarf tyrant") is a genus of tyrannosauriod theropod dinosaur that lived in North America during the Late Cretaceous period. In 2020, following a study conducted by Thomas Carr into the growth series of Tyrannosaurus, Nanotyrannus was formerly considered a synonym of Tyrannosaurus, being its juvenile growth stage.
However, a study published in 2024 claimed that the specimens were nearly adults and if they really were Tyrannosaurus, they would not have been at that stage such as their longer arms. Despite the 2024 study, many scientists still said that Nanotyrannus was a juvenile Tyrannosaurus but the genus remained dubious.
However, a study published in October 2025 established Nanotyrannus as a valid genus and having a second species called Nanotyrannus lethaeus.
Jurassic Park Franchise[]
Nanotyrannus has been featured in the Dinopedia of the Jurassic Park Institute.
Games[]
Jurassic World Play[]
Nanotyrannus make its first video game appearance through the release of the Jurassic World: Rebirth collection in Jurassic World Play.
Jurassic World: Alive[]
Nanotyrannus was confirmed to appear in Jurassic World: Alive during Update 2.17.[1]
Toys[]
Jurassic World: Rebirth[]
Nanotyrannus appears in the Jurassic World: Rebirth toyline as a Strike Attack figure.
Trivia[]
- When the figure of Nanotyrannus was confirmed during Jurassic World: Rebirth's toyline many people claimed it was controversial as by that time the validity of Nanotyrannus was still in question untill the new research confirming it's validity was released on October 30th, 2025.
