Nanotyrannus

Nanotyrannidae Nanotyrannus

Nanotyrannidae Nanotyrannus

Scientists thought this was a young T. rex. They were wrong

bone growth predator fossil juvenile Dinosauria Nanotyrannus

A long-running dinosaur mystery may finally be solved: Nanotyrannus, once dismissed as just a teenage T. rex, appears to have been its own distinct species after all. Scientists analyzed a tiny throat bone from the original fossil and discovered growth patterns showing the animal was already mature, not a juvenile giant-in-the-making. This smaller predator—about half the size of a full-grown T. rex—likely roamed alongside its famous cousin, adding a new layer of complexity to prehistoric ecosyst

16/04/2026 sciencedaily

This rare bone finally settles the Nanotyrannus mystery

bone growth museum fossil specimen Nanotyrannus Tyrannosaurus discovery

Scientists have confirmed that Nanotyrannus was a mature species, not a young T. rex. A microscopic look at its hyoid bone provided the key evidence, matching growth signals seen in known T. rex specimens. This discovery suggests a richer, more competitive tyrannosaur ecosystem than previously believed. It also highlights how museum fossils and cutting-edge analysis can rewrite prehistoric history.

09/12/2025 sciencedaily

Nanotyrannus: Beast of the Week

United States Cretaceous Dinosauria Nanotyrannus

 This week we will be learning about a dinosaur who's identity has been the subject of a lot of debate or decades.  Check out Nanotyrannus!Nanotyrannus was a meat-eating dinosaur that lived in what is now Montana in the United States during the latest Cretaceous period, between 67 and 66 million years ago.  From snout to tail it measured between 17 and 20 feet (6.2 meters) long as an adult. The genus name translates to "Small/Dwarf Tyrant" because it was originally believed to be a close relativ

19/11/2025 prehistoricbeastoftheweek