How and why the Cambrian explosion occurred has been the subject of debate ever since fossils of this remarkable event were ...
Recent molecular phylogenetic analysis has shown that the marine animals known as peanut worms are not a separate phylum, but are definitely part of the family of annelids, also known as segmented ...
Frontmatter -- Preface -- Contents -- List of contributing authors -- Part 1: Introduction -- 1. A History of Annelida Research / ǂr Read, Geoffrey B. -- 2. Phylogeny / ǂr Struck, Torsten ...
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