paleozoic
The answer is the fossil record :D
No, it doesn't. consider for a moment that about 98% of all life on the planet is extinct. Now consider that the conditions necessary to produce fossils does not exist everywhere. You have a clue to why we do not have a complete, or even a miniscule record of the history of life on Earth.
A fossil record is a historical sequence of life indicated by fossils found in layers of Earth's crust.
at the mountains
The fossils of the oldest life forms can be found in the Precambrian period of the fossil record.
Protists were first found in the fossil record around 2.1 billion years ago.
order in which fossils are found in the fossil record.
True
The fossil record.
Yes, hundreds of species of fish can be found in the fossil record.
Fossil record
The fossil record.