Catalogue of Life
The Dynamic Edition is a constantly evolving version of the Catalogue of Life. Anything can change as the list develops: names, their associated details, and their content providers and there is no tracking of those changes. For that reason, the Dynamic Edition is not the one to quote if you wish to cite a verifiable source. It is, however, a great 'expert system', helping those at the forefront of their science to track, and contribute to the development of taxonomy. Periodic issues are progressively enhanced, in what will evolve as a dynamically developing system, made available online and as web-services. The Annual Checklist is a snapshot of the entire Catalogue of Life: a fixed imprint.
Related: Tree of Life - Taxonomy