Beast Wars timeline

Uncertain era on prehistory Earth

• Maximals and Predacons come from the future via Transwarp and scan the animals of the planet in order to transform into them. The Beast Wars begin.

• The immortal life force of Starscream, who died in the future of 2005, crosses time and space to reach Earth. He possesses a Predacon and attempts to take over, but fails. He returns to being a ghost and vanishes into the far reaches of time and space.

• Due to the Maximals' and Predacons' interference in the Vok experiment on Earth, the Vok begin to terraform the planet. Optimus Primal sacrifices his life to stop this. As a result, Earth loses its second, mechanical moon, and the Quantum Surge is generated.

• Humanity's ancestors are born.

• Ravage is sent from the future to kill everyone. He captures the Predacon Megatron, but fails in his mission and is destroyed by Rattrap's sabotage.

• In the volcano later to be known as Mount St. Hilary, the Predacon Megatron unearths the Ark and attacks Optimus Prime in an attempt to change history. As a result, a Time Storm occurs, but Optimus Primal stops it.

• Depth Charge arrived in the prehistory earth in the hunt for Protoform X.

• Tarantulas discovered the Decepticon warship, the Nemesis.

• Tarantulas's discovery was found by Predacon Megatron. Megatron tried to use the Nemesis to change the history. However, the plan was stopped by the Maximals led by Optimus Primal.

• The Maximals capture the Predacon Megatron and return to the future.

From Teletraan I: The Transformers Wiki, a Wikia wiki.