Passenger Pigeon
Ectopistes migratorius
Flocks once darkened the sky, yet abundance could not protect a species dependent on immense colonies.
LIFE ARCHIVE
Browse extinct life from traces nearly 1.9 billion years old to historically recorded extinctions.
Explore the atlas by continent, country and state. Follow fossil localities into regional guides, compare animals across time and return to the evidence in each species profile.
FIELD GUIDES
Giants, strange body plans and lives within human memory. Follow a question into the atlas, then explore the animals behind it.
Ectopistes migratorius
Flocks once darkened the sky, yet abundance could not protect a species dependent on immense colonies.
Pinguinus impennis
This flightless North Atlantic seabird used its wings as powerful underwater paddles.
Hydrodamalis gigas
This enormous, slow sirenian grazed kelp in cold shallow water.
Dinornis robustus
One of the tallest birds ever known browsed forests without wings of any kind.
Hieraaetus moorei
The largest known eagle evolved to strike moa many times its own weight.
Anomalocaris canadensis
A meter-long swimmer with grasping frontal appendages was a giant of Cambrian seas.
Opabinia regalis
Five eyes and a grasping proboscis made this small swimmer one of the Cambrian’s strangest forms.
Hallucigenia sparsa
Paired spines guarded a soft-bodied walker once reconstructed upside down.
Jaekelopterus rhenaniae
This giant sea scorpion may have exceeded two meters in length.
Cameroceras trentonense
A long straight shell housed one of the largest predators of Ordovician seas.
Helicoprion davisii
Its spiral tooth whorl worked like a permanent slicing blade inside the lower jaw.
Edestus heinrichi
Opposing tooth blades projected from its jaws like curved shears.
Eusthenopteron foordi
Bones inside its fleshy fins foreshadowed the limb pattern of land vertebrates.
Inostrancevia alexandri
Long saber canines armed one of the largest predators of the latest Permian.
Scutosaurus karpinskii
A barrel-bodied herbivore carried bony armor beneath its skin.
Allosaurus fragilis
A lightweight skull and serrated teeth equipped this large predator for repeated slashing bites.
Brachiosaurus altithorax
Long forelimbs lifted its shoulders and neck toward the Jurassic canopy.
Diplodocus carnegii
A whip-like tail balanced an extremely long neck on this lightly built giant.
Carnotaurus sastrei
Brow horns, a deep skull and extremely reduced arms marked this fast abelisaurid.
Giganotosaurus carolinii
A giant narrow-skulled theropod shared its world with immense sauropods.
Deinonychus antirrhopus
A stiff tail, grasping hands and enlarged foot claw made an agile feathered hunter.
Oviraptor philoceratops
The supposed egg thief was found above a nest that probably contained its own young.
Therizinosaurus cheloniformis
Meter-long hand claws belonged to a tall, feathered, pot-bellied herbivore.
Pachycephalosaurus wyomingensis
A thick dome of bone crowned the skull of this two-legged herbivore.