Axis labels in Ma (millions of years ago) ·
Click a card for details
Late Jurassic Epoch 7
155–145 Ma · Late JurassicAllosaurusApex predator of the Late JurassicThe dominant large predator of Jurassic North America, Allosaurus reached 12 metres in length. It likely hunted sauropods and stegosaurs, and is one of the best-studied of all theropod dinosaurs.
155–150 Ma · Late JurassicStegosaurusPlated dinosaur with spiked tailOne of the most recognisable dinosaurs, Stegosaurus had large bony plates along its back and four tail spikes for defence. Despite its large body it had a remarkably small brain.
154–150 Ma · Late JurassicBrachiosaurusGiraffe-like giant sauropodOne of the largest animals ever to walk the Earth, Brachiosaurus had front legs longer than its hind legs giving it a giraffe-like posture to browse treetops. It could reach 26 metres in length.
154–152 Ma · Late JurassicDiplodocusLong-necked, whip-tailed sauropodOne of the longest dinosaurs known, Diplodocus reached up to 27 metres. Its extremely long neck and whip-like tail were its defining features. A gentle giant that fed on low-growing vegetation.
152–151 Ma · Late JurassicApatosaurusMassive sauropod, formerly BrontosaurusLong confused with Brontosaurus, Apatosaurus was a massive sauropod reaching 22 metres. One of the heaviest dinosaurs, it had a long neck and an extraordinarily powerful tail.
150.8 MaArchaeopteryxFirst known birdTransitional fossil combining dinosaur and bird features; Jurassic Solnhofen limestone, Germany.
150–148 Ma · Late JurassicArchaeopteryxThe first known birdThe iconic transitional fossil between dinosaurs and birds. Archaeopteryx had feathers and wings like a bird but teeth, clawed wings and a bony tail like a dinosaur. Found in Solnhofen limestone, Germany.