Science ❯ Biology ❯ Paleontology

Dinosaur Classification

Nanotyrannus Tyrannosaurus rex Dromaeosauridae Theropoda Sauropods Ceratopsians Tyrannosaur Ancestors Nanotyrannus lancensis Tyrannosaurids Foskeia pelendonum Theropods Enigmacursor mollyborthwickae Dinosaur Morphology Theropod Lineages Species Differentiation Alioramins Eutyrannosauria Coelurosaurs Alioramus Tyrannosauridae Tameryraptor markgrafi Tyrannosauroid Evolution Ornithischia Ornithischian Dinosaurs Birds and Dinosaurs Titanosaurs Ornithopoda

Tiny Argentine Dinosaur Fossil Reshapes Alvarezsaur Evolution and Global Spread

The Nature paper finds miniaturization preceded the clade’s later ant‑eating adaptations.

Haolong dongi Fossil Reveals Cellular-Level Skin and Unique Cornified Spikes

Tiny Spanish Dinosaur Foskeia Pelendonum Formally Described, Recasting Parts of the Ornithischian Family Tree

Hyoid-Bone Study Confirms Nanotyrannus Was Its Own Tyrannosaur Species

Study Confirms Dueling Dinosaurs Predator Was Adult Nanotyrannus, Not Young T. Rex

Adult Nanotyrannus Identified in 'Dueling Dinosaurs' Fossil, Forcing Rethink of T. Rex Growth

Nature Study Confirms Adult Nanotyrannus in 'Dueling Dinosaurs,' Upending T. rex Growth Models

Khankhuuluu mongoliensis Reveals Tyrannosaur Ancestor of T. Rex