When searching at almost any fossil site, a collector is more likely to come across an invertebrate fossil than any other kind. This book is a marvellously detailed and accessible resource designed to unravel and interpret this rich fossil record. Ideal for any undergraduate or amateur fossil enthusiast, it covers all major groups of fossil invertebrates and provides illustrated descriptions of selected genera.Fossil Invertebrates is a window into the ancient Earth when the seas teemed with ammonites, corals, sponges, molluscs, crinoids and trilobites. The sheer abundance of their fossils reflects the fact that many invertebrates, with solid, decay-resistant shells, were perfectly designed to become fossils. Many of these fossilised creatures have close relatives alive today, and the book demonstrates how the fossil record can shed light on today's fauna.