Download or read book Brief History of the Gymnosperms written by John Malcolm Anderson and published by . This book was released on 2007 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a global synthesis of gymnosperm families, fossil and extant, providing a new and distinctive perspective on the macroevolutionary biodiversity trends within this group through their 375 million-year history. The stratigraphic ranges of the 84 gymnosperm families are plotted according to their first and last appearances in the fossil record. Also included is a systematic coverage of floral kingdoms, biodiversity patterns, insect associations and other fields, traced period by period from the Devonian to Quaternary.