Complex sentence: A Taxonomic and Geographic Reference, now in its third edition, is a standard reference work in zoology giving descriptions and bibliographic data for the known species of mammals, and was edited by Don E. Wilson and DeeAnn M. Reeder.
Split into simpler sentences: A Taxonomic and Geographic Reference is a standard reference work in zoology giving descriptions and bibliographic data for the known species of mammals. It is now in its third edition that was edited by Don E. Wilson and DeeAnn M. Reeder.