Quaternary Period

The Quaternary Period is the second most recent of the three periods of the Cenozoic Era in the geologic time scale, following the Neogene Period. It spans from 2.58 million years ago to the present day, and is characterized by the presence of humans and the formation of ice ages.

Key Events

• Glaciations: The Quaternary Period is marked by a series of glacial and interglacial periods, leading to the formation of polar ice caps and glaciers.
• Evolution of Humans: The Quaternary is the period during which the genus Homo emerged and evolved, eventually leading to the appearance of modern humans.
• Megafauna Extinction: Many large mammals, known as megafauna, such as mammoths and saber-toothed cats, became extinct during this period, possibly due to climate change or human hunting.
• Rise of Modern Ecosystems: The Quaternary Period saw the development of modern ecosystems and the spread of diverse plant and animal species.

Study Guide

When studying the Quaternary Period, it is important to focus on the following key points:

1. Understand the concept of glaciations and their impact on the Earth's surface and climate.
2. Examine the fossil record to learn about the evolution of early humans and the extinction of megafauna.
3. Explore the environmental changes that occurred during the Quaternary Period and their influence on the development of modern ecosystems.
4. Consider the significance of the Quaternary Period in understanding the current geological and ecological state of the Earth.

By understanding these key events and concepts, you can gain a comprehensive knowledge of the Quaternary Period and its significance in Earth's history.

[Quaternary Period] Related Worksheets and Study Guides:

• Geologic timeScience • Eighth Grade