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Prehistoric Timelines

Palaeozaic Era - the periods before the dinosaurs appeared in order of occurance starting with the most earliest. Click on a timeline to find out more about each particular era.

Precambrian

Precambrian

4600 - 570 Million Years Ago - Precambrian is an era which includes the Proterozoic eon and the Archean eon spanning about 2000 years each. Find out more here.....

Cambrian

Cambrian

570 - 505 Million Years Ago - The first fishes, corals, trilobites and shellfish appeared. Find out more here.....

Ordovician

Ordovician

505 - 43 Million Years Ago - The first nautiloids appeared. Corals and trilobites were common. Find out more here.....

Silurian

Silurian

438 - 408 Million Years Ago - The first land plants and giant sea scorpions called Eurypterids (left) appeared. Find out more here.....

Devonian

Devonian

408 - 362 Million Years Ago - The first amphibians, insects and spiders appeared. Find out more here.....

Carboniferous

Carboniferous

362 - 290 Million Years AgoThe first reptiles appeared. Great swamp forests covered the land. Find out more here.....

Permian

Permian

290 - 248 Million Years Ago - The first sailback reptiles such as Dimetrodon appeared. Find out more here.....

Mesozaic Era - During this time the Dinosaurs appeared and eventually ruled the Earth. It aso includes the Cretaceous period of the Dinosaur extinction. Click on a period to find out which Dinosaurs lived in each era.
Triassic Period

Triassic Period

Triassic Period - 245 million years ago. The first dinosaurs such as Eoraptor, Coelophysis (left), Melanorosaurus, Plateosaurus, Mussaurus and mammals, turtles, crocodiles and frogs appeared. Find out more here.....

Jurassic Period

Jurassic Period

Jurassic Period - 208 million years ago. The first birds appeared. Dinosaurs included diplodocus (left), stegasaurus and brachiosaurus. Find out more here.....

Cretaceous Period

Cretaceous Period

Cretaceous Period - 144 million years ago. Dinosaurs during this time included muttaburrasaurus, Utahraptor and ankylosaurus. The dinosaurs died out towards the end of this period. The first snakes and modern mammals appeared. Find out more here.....

For a list of all Dinosaurs, Pterosaurs and Sea Reptiles featured on this site, click HERE!