NCBI Taxonomy
Curated classification and nomenclature for all of the organisms in the public sequence databases
Global Biodiversity Information Facility
An international open data infrastructure, funded by governments. Access data about all types of life on Earth, shared across national boundaries via the Internet.
Encyclopedia of Life
Contains life on Earth (articles, media, maps, data and more) into a single curated, open database.
International Plant Names Index
A database of the names and associated basic bibliographical details of seed plants, ferns and lycophytes.
Integrated Taxonomic Information System
Authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
Index to organisms names
Contains the organism names related data gathered from the scientific literature for theZoological Record®