​The Integrated Taxonomic Information System (ITIS) provides authoritative taxonomic information for scientific and common names in all kingdoms.

Washington, DC
Joined June 2014
U.S. research biologist Tom Orrell of @ITISGov @NMNH @catalogueoflife et al. elected chair of GBIF Science Committee bit.ly/2yrGhSC
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We ❤️biodiversity informatics & we’re excited that our own Tom Orrell was elected Chair of @GBIF’s Science Committee gbif.org/news/2AA2AZgCfYgI0S…
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New ITIS Data Loaded: New ITIS data were loaded into the database. A total of 1,863 scientific names are new ... bit.ly/2eslj9z
Search Off-Site Resources Removal: The Search Off-Site Resources option at the bottom of the ITIS taxon stand... bit.ly/2dZZW1X
New ITIS Data Loaded: New ITIS data were loaded into the database. A total of 5,633 scientific names are new ... bit.ly/1FboTQm
NOTE! ITIS Temporary Outtage July 30-31, 2016: NOTE! Beginning 12PM ET Saturday, July 30 through 7PM ET Sunda... bit.ly/2aemaJ1
ITIS Updates 10 Avian Orders: ITIS has updated its global coverage of 10 bird orders: Kiwis (Apterygiformes),... 1.usa.gov/1OIrTJs
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New ITIS Data Loaded: New ITIS data were loaded into the database. A total of 5,932 scientific names are new o... 1.usa.gov/1FboTQm
New ITIS data were loaded into the database!. A total of 15,376 scientific names are new or edited in this load.
ITIS added a global species list of Strepsiptera (twisted-wing parasites) - the group includes 630 species with 105 North America species.
New ITIS data were loaded into the database!. A total of 983 scientific names are new or edited in this load.
Sara Alexander of ITIS at @NMNH uses BHL to help improve access to standardized taxonomic info ow.ly/HaNOB
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Test ITIS Hierarchy DB TableStructure Changed: If you've been using our database downloads from the downloads... 1.usa.gov/1AwWr7s
Test ITIS Updates Dormice and Boas: ITIS has added complete global species datasets of Gliridae (dormice) and ... 1.usa.gov/1vU48hB
ITIS has just added complete "Kingdom" Archaea (data as of 2012) with 337 valid species itis.gov/downloads/
Thursday, November 20, 2014 ITIS has just added global species datasets of Testudines (turtles) and Chiroptera (bats) itis.gov/downloads/