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Dinosaur Evolution

Birds as Dinosaurs Cretaceous Period Feathered Dinosaurs Ornithopods Bromalites Fossil Analysis Early Dinosaurs Origin Theories Bird Ancestors Feather Origins Extinction Events Monstersaurs Tyrannosaurs Khankhuuluu Khankhuuluu Mongoliensis Tyrannosauroids Khankhuuluu mongoliensis Herbivorous Dinosaurs Theropod Skulls Spicomellus afer Ankylosaurs Avialae Tyrannosaurids Nanotyrannus Anteavis crurilongus Sauropodomorpha Tyrannosaurus rex Foskeia pelendonum Feather Molting Evolutionary Biology Alvarezsauroidea Alvarezsaurs Limusaurus Warm-Blooded Dinosaurs Bird-Dinosaur Connection Titanosaurs Silesauridae

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

Color-Preserved Anchiornis Fossils Indicate Loss of Flight, Study Finds

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

Two New Triassic Dinosaurs From Argentina Reframe Early Dinosaur Evolution

Oldest Ankylosaur Revealed With Meter-Long Neck Spikes and Early Tail Weapon

Giant Theropods Developed Diverse Skull Biomechanics, Study Shows

Newly Identified Enigmacursor mollyborthwickae to Debut at London’s Natural History Museum

New Armored Lizard Species Identified From 77-Million-Year-Old Utah Fossils

Khankhuuluu mongoliensis Reveals Tyrannosaur Ancestor of T. Rex