144 to 65 million years ago
It is fossil fuels.
The Devonian period lasted for approximately 60 million years, from about 419 million years ago to 359 million years ago.
The Permian period lasted from about 299 to 252 million years ago, making it approximately 252 to 299 million years ago. It was the last period of the Paleozoic Era and is known for its diverse marine life and the formation of the supercontinent Pangaea. The Permian ended with the largest mass extinction event in Earth's history.
The five mass extinctions that occurred in Earth's history took place during the Ordovician period (about 445 million years ago), the Devonian period (about 375 million years ago), the Permian period (about 251 million years ago), the Triassic period (about 200 million years ago), and the Cretaceous period (about 66 million years ago).
150 millions years ago Earth was in the late Jurassic period.
depends on what era and period it lives in for example: tyrannosaurus rex is top predator in the late cretaous
145 million years ago.
The Jurassic Period is defined as the period of time between 200 million years ago to 145 million years ago.
The Jurassic period ended 145+/- 4 million years ago. It took place between the Triassic period and the Cretaceous period.
Long ago or old
At the start of the Camrbian period, roughly 542 million years ago.
At the start of the Camrbian period, roughly 542 million years ago.
The Carboniferous is considered to have started 354 million years ago and ended 290 million years ago.
The Devonian Period lasted from about 395 to 345 million years ago. It is part of the Paleozoic Era.
It is fossil fuels.
Millions of years ago, possibly in the cretaceous period. No one is entirely sure.
Dinosaurs lived in the Jurassic Period over 145 to 200 million years ago. Dinosaurs became extinct during the Triassic period.