Arthropod Fossils and Phylogeny

What light do fossils shed on the deep history of life's most diverse phylum, the Arthropoda? Are the interrelationships between major groups of arthropods — crustaceans, chelicerates, and tracheates — resolved the same way whether or not fossils are included? How should we combine evidence from extinct and extant taxa? These are the central questions of Arthropod Fossils and Phylogeny.

Many recent controversies in arthropod evolution have been initiated by new fossil discoveries and ne…