Earth History through images (Part II)

From the formation about 4.6 billion years ago, our Earth has gone through many times of "changing stars" with important evolutionary steps.

III. Middle Ages (248 - 63 million years)

a / Triassic Period (248 - 205 million years)

The first dinosaurs were present on the planet about 240 million years ago. Among them, there are herbivores about the size of a kangaroo, with carnivores about 1 meter in size, and there are also scary species with a body length of up to 6m.

The continent split in the late Triassic period. Europe separated from Africa, South America leaving Central and North America.

Small mammals of mammal class appear, following the decline of their ancestors as reptiles.

b / Jurassic period (205 - 138 million years)

The dinosaurs dominate the ground.

The first birds began to flap their wings about 150 million years ago. Fossils show that they still have some structural features of reptiles such as a bone tail, clawed wings, and sharp teeth.

c / Cretaceous period (138 - 63 million years)

Flowering plants began to appear about 125 million years ago. Perhaps they were fragmented in the Jurassic period but this time began to flourish thanks to the warm and mild climate.

The extinction of dinosaurs occurred about 65 million years ago, at the end of the Cretaceous period . All wingless dinosaurs have been wiped out. At this mass extinction, about 50% of the planet's flora and fauna have disappeared. And again, the main cause is climate change.

IV. Great new student (starting 63 million years ago)

a / Paleogene century (63 - 24 million years)

Mammals replace dinosaurs, they quickly divide into many species and grow in both quantity and body size.

Primates appear about 55 million years ago. They are small in size, their bodies are covered with fur and have the ability to move flexibly on tree branches. They also have fairly large brains with a body size.

b / Neogene period (24-2 million years)

Ancient people appeared about 6-8 million years ago with the breakthrough is to start going straight with 2 legs. They no longer live on trees but just climb trees to pick fruit, find caves to avoid wild animals at night.

c / Century Quarternary (2 million years)

The ice began to creep around the corners of the earth. Over the past 1.8 million years, the earth has been continuously covered by frosts, and the last wave ended about 10,000 years ago. In these prolonged severe frosts, very thick fur-covered animals appear, like mammoth elephants .

Modern people appeared in Africa about 190,000 years ago. The first migration from Africa began about 70,000 years ago, modern people gradually invaded remote areas like Australia and South America.

History of earth formation (part 2)

1. Earth History through images (Part I)