Some Devonian trees are known to have grown 100 feet (30 meters) tall. By the end of the period the first ferns, horsetails, and seed plants had also appeared. The new life burgeoning on land ...

Originally published in 1921, this book presents a detailed account 'of the two Devonian land floras'. Illustrative figures and textual notes are incorporated throughout. This book will be of value to ...

One of the most important milestones in the evolution of life began some ... At that time, known as the Devonian period, the world was changing dramatically: complex plant ecosystems formed ...