'Since January 2000, names of prokaryotes change at a rate approaching 750 validly published names every year. Keeping up with changes in prokaryotic nomenclature has always been problematic. "List of Prokaryotic names with Standing in Nomenclature" was conceived as a solution to this problem. It provides accurate information about the current status of a name, synonyms, and other useful information. '
'...SILVA provides comprehensive, quality checked and regularly updated datasets of aligned small (16S/18S, SSU) and large subunit (23S/28S, LSU) ribosomal RNA (rRNA) sequences for all three domains of life (Bacteria, Archaea and Eukarya). '