Taxonomy browser
Archaea
Bacteria
Eukaryota
Viroids
Viruses

Taxonomy common tree

Taxonomy information

Taxonomy resources

Genetic codes

Taxonomy Statistics

Taxonomy Name/Id Status Report

Taxonomy FTP site

FAQs

How to reference the NCBI taxonomy database

How to create links to the NCBI taxonomy

How to create LinkOut links from the NCBI taxonomy

Extinct organisms

Recent changes to classification

The NCBI Taxonomy Homepage

These are direct links to some of the organisms commonly used in molecular research projects: