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Fossils

Pterosaurs Birds Amber Triassic Period Fossil Analysis Fossil Discovery Reptiles Arthropods Extinct Species Archaeopteryx

Scans Confirm Egg-Laying in Mammal Ancestor Lystrosaurus

High‑energy X‑ray imaging reveals soft eggs in a key ancestor of mammals.

Famed ‘Oldest Octopus’ Reclassified as Nautiloid After High-Energy X-Ray Study

Mummified Permian Reptile Reveals Oldest Rib-Powered Breathing System

Late Ediacaran Fossils in China Push Back Origins of Major Animal Groups

Chinese Fossil Trove Pushes Complex Animal Origins Into the Ediacaran

Oldest Chelicerate Fossil Dates to 500 Million Years Ago

500-Million-Year-Old Chelicerate Pushes Back Spider Lineage by 20 Million Years

Egyptian Ape Fossil Challenges East Africa as Cradle of Modern Apes

Egypt Jaw Fossil Recasts Great Ape Origins

New Species Crocodylus lucivenator, Likely Predator of 'Lucy,' Described From Ethiopia

New Triassic Croc-Line Reptile Grew From Four-Legged Juvenile to Bipedal Adult

Tiny Argentine Dinosaur Fossil Reshapes Alvarezsaur Evolution and Global Spread

T. Rex Likely Ran Toe-First, Study Finds, Raising Speed Estimates by About 20%

125-Million-Year-Old Bird 'Gorgonavis' Unveiled in Cuenca Museum Display

New Spinosaurus From Niger Recasts Predator as Shallow-Water Wader

Study Finds Tyrannosaur Tooth Embedded in Edmontosaurus Skull

307-Million-Year-Old Skull Pushes Back the Origin of Plant-Eating on Land

Scientists Describe Tyrannoroter Heberti, a 307-Million-Year-Old Plant-Chewing Tetrapod

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