What time period is 400 million years ago?
Silurian
The Geologic Time Scale
| Simplified Geologic Time Scale | ||
|---|---|---|
| Era | Period or System | Epoch or Series |
| Paleozoic (570 – 250 million years ago) | Devonian (400 – 365 million years ago) | Middle |
| Early or Lower | ||
| Silurian (425 – 400 million years ago) | Late or Upper |
What era was occurring 375 Mya?
The Late Devonian extinction which started about 375 million years ago severely affected marine life, killing off all placodermi, and all trilobites, save for a few species of the order Proetida….
| Devonian | |
|---|---|
| Nickname(s) | Age of Fishes |
| Usage information | |
| Celestial body | Earth |
| Regional usage | Global (ICS) |
What periods of geologic time is the Age of Fishes?
The Devonian, part of the Paleozoic era, is otherwise known as the Age of Fishes, as it spawned a remarkable variety of fish.
What happened to the Earth 375 million years ago?
Scientists have found evidence for catastrophic oceanographic events associated with climate change and a mass extinction 375 million years ago that devastated tropical marine ecosystems.
When did the Hangenberg event happen?
359 million years ago
A second mass extinction, the Hangenberg event (also known as the end-Devonian extinction), occurred 359 million years ago, bringing an end to the Famennian and Devonian, as the world transitioned into the Carboniferous Period.
In what era do humans live?
Cenozoic
Our current era is the Cenozoic, which is itself broken down into three periods. We live in the most recent period, the Quaternary, which is then broken down into two epochs: the current Holocene, and the previous Pleistocene, which ended 11,700 years ago.
What time period was 430 million years ago?
The Silurian Period
The Silurian Period. The Silurian (443.7 to 416.0 million years ago)* was a time when the Earth underwent considerable changes that had important repercussions for the environment and life within it.
What did Earth look like during the Silurian Period?
Large expanses of several continents became flooded with shallow seas, and mound-type coral reefs were very common. Fishes were widespread. Vascular plants began to colonize coastal lowlands during the Silurian Period, whereas continental interiors remained essentially barren of life.
What happened to the Earth 250 million years ago?
Some 250 million years ago, simultaneous mass extinctions of marine and terrestrial life occurred in an event known as the End-Permian. Or so scientists believed.