Research Guides: Biological and Life Sciences: Taxonomy

All Biota

Integrated Taxonomic Information System
Hierarchical classification information for plants, animals, fungi, and microbes.
Species 2000
A federation of taxonomic databases from several organizations.
Taxonomy Browser
Easily visualize, or browse for, organism-specific data and articles.

Germplasm Resources Information Network Taxonomy (USDA -ARS)
Provides hierarchical classification, geographic distribution, and literature references.
Plants Database
Hierarchical classification, distribution, related taxa, and images of plants native or naturalized to the U.S. and territories.

AmphibiaWeb (University of California Berkeley)
Hierarchical classification of More than 5700 species.
Animal Diversity Web (University of Michigan)
Hierarchical classification. Includes scientific and common name searches.
Invertebrate Zoology Collection-Smithsonian Museum of Natural History
Includes scientific and common name searches.
TIGR Reptile Database
More than 8800 species. Geographic distribution, references, and images.
Includes scientific and common name searches.