How many epochs is the earth divided into What is the order of all the epochs of the earth?

I'll give you something in a dictionary that says hopefully at the end of it.

It's called geology. Cenozoic Quaternary Holocene qh

Humans emerge. Late Pleistocene QP

Middle Pleistocene qp2

Early Pleistocene qp1

Neogene Pliocene n2

Miocene n1 Emergence of modern mammals.

Paleogene Oligocene e3

Eocene e2

Paleocene E1 65 fish appeared.

Mesozoic Cretaceous k 135 angiosperms, planktonic calcareous algae occur.

Jurassic j 208 avian mammals appear.

Triassic t 250 saurosaurus ichthyosaurus appeared.

Late Paleozoic Permian p

290 Zoomorphic species Gymnosperms appear.

Carboniferous C362 Epiphyllum seed ferns Coda.

Devonian D410 Total finned fishes Arthroid Lycopodium Lycopodium True fern occurs.

Early Paleozoic Silurian s

439 Naked fern plant appears.

Ordovician O510 jawless occurrence.

Cambrian --

570 Appearance of crustaceans.

Neoproterozoic Sinian z

680 No presence of hard shells.

South China NH 800

Qingbaikou Qb 1000 Multicellular animals Occurrence of higher algae.

Mesoproterozoic Jixian Jx 1 400 eukaryotic appearance (Chlorella) Great Wall ch 1800

Paleoproterozoic Hutuo period.

hl 2300

Wutai Ji. wt 2500

Neo-Archean. AR3 2800 Prokaryotic occurrence (fungi and cyanobacteria) in the Archean. ar2 3200

Ancient Archean. AR1 3600 Life Phenomena are beginning to appear.

Archean times. ar0 45oo

Aurora: 1.3 billion years ago, 1.9 billion years;

Cambrian: 600 million years ago;

Ordovician: 500 million years ago;

Silurian period: 100 million years ago;

Devonian:100 million years ago;

Carboniferous:100 million years ago;

Permian:100 million years ago;

Triassic:100 million years ago;

Jurassic:100 million years ago;

Cretaceous:100 million years ago;

Tertiary:6 million years ago;

Quaternary:10,000 years ago.

Geological epoch. It is difficult to pinpoint an event in human history to a certain point of a certain day, and for a similar reason, we do not need to expect to be accurate to the year of geological time - it is not easy to define most periods with an error of tens of thousands of years.

The largest unit of geological age is called "epoch", and it is divided into generations, epochs, and epochs in descending order. Their corresponding stratigraphic or geological records are called universes, boundaries, systems, and systems.

For example, a winged dinosaur found in western Liaoning, China, lived in the "Phanerozoic, Mesozoic, Cretaceous, Early Cretaceous", and the stratum where it is located belongs to the "Phanerozoic, Mesozoic, Cretaceous, Lower Cretaceous" - when describing time, use "early, middle, late"; When describing space (stratigraphic order), we use "lower, middle, and upper".

The time can also be subdivided into expiration and time, and the corresponding strata are called steps and time zones, which are quite professional and rarely exposed to non-professional readers.

The Earth Age is divided into: Cambrian, Ordovician, Silurian Period, Devonian, Carboniferous, Permian, Mesozoic, Triassic, Jurassic, Cretaceous, Paleogene, Neogene, Quaternary.

1. Cambrian.

The Cambrian period is the first epoch of the Paleozoic Era, which began about 100 million years ago and ended 100 million years ago. During this period, the land sank and much of the Northern Hemisphere was submerged by seawater.

2. Ordovician.

The second epoch of the Paleozoic Era, which began about 100 million years ago and ended 100 million years ago. During this period, the rocks were made of limestone and shale. The biota is dominated by trilobites, penoliths, brachiopods, and plate-legged catfish, as well as corals.

3. Silurian period.

The third epoch of the Paleozoic Era, which began about 100 million years ago and ended 100 million years ago.

4. Devonian.

The fourth epoch of the Paleozoic Era, which began about 100 million years ago and ended 100 million years ago.

5. Carboniferous.

The fifth epoch of the Paleozoic Era, which began about 100 million years ago and ended 100 million years ago.

6. Permian.

The sixth and last of the Paleozoic era. It began about 100 million years ago and ended 100 million years ago.

7. Mesozoic.

The second generation of the Phanerozoic. It is divided into Triassic, Jurassic, and Cretaceous. It began about 100 million years ago and ended 65 million years ago.

8. Triassic.

The first epoch of the Mesozoic Era, which began about 100 million years ago and ended 100 million years ago.

9. Jurassic.

The second epoch of the Mesozoic Era, which began about 100 million years ago and ended 100 million years ago.

10. Cretaceous.

The third epoch of the Mesozoic Era, which began about 100 million years ago and ended 65 million years ago.

11. Paleogene.

The first epoch of the Cenozoic generation. It began about 65 million years ago and ended 23 million years ago.

12. Neogene.

The second epoch of the Cenozoic Era (formerly known as the Neo-Tertiary and Late Tertiary). It began about 23 million years ago and ended 1.6 million years ago.

13. Quaternary.

The third epoch of the Cenozoic, the last epoch of the Cenozoic, is also the last epoch of the geological time period. It began about 1.6 million years ago and continues to this day.

The order of all the Earth's epochs is: Archean, Proterozoic, Sinian, Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, Cretaceous, Cenozoic, Anthropocene, and Degeneracy.

1.The Archean period was 65 billion years ago.

2.Proterozoic 35 1.3 billion years ago.

3.The Aurora period was 19 1.3 billion years ago.

4.Cambrian billions of years ago.

5.Ordovician billions of years ago.

6.Silurian billions of years ago.

7.The Devonian period was 100 million years ago.

8.Carboniferous 100 million years ago.

9.Permian billions of years ago.

10.Triassic billions of years ago.

11.Jurassic billions of years ago.

12.Cretaceous billions of years ago.

13.The Cenozoic < 66.4 million years ago.

14.Anthropocene: Paleocene 66.4 million years ago, Eocene 55 million years ago, Oligocene 38 million years ago, Miocene 24.6 million years ago, Pliocene 5 million years ago.

15.Degeneracy: Pleistocene 2 million years ago, Holocene 10,000 years ago.