Download or read book Telling the Evolutionary Time written by Philip C J Donoghue and published by CRC Press. This book was released on 2003-12-16 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Determining the precise timing for the evolutionary origin of groups of organisms has become increasingly important as scientists from diverse disciplines attempt to examine rates of anatomical or molecular evolution and correlate intrinsic biological events to extrinsic environmental events. Molecular clock analyses indicate that many major groups