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Dinosaur Evolution

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

New Four‑Winged Microraptorine Jian changmaensis Described From China’s Changma Basin

A partial shoulder and forelimb suggest a gliding four‑winged predator that extends confirmed microraptorine fossils into northwestern China.

Study Links Tiny T. rex Arms to the Rise of Powerful Jaws

Tiny Argentine Dinosaur Fossil Reshapes Alvarezsaur Evolution and Global Spread

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