Download (gzipped tar file, 62 Mbyte)
OTT 2.0 employs a version of the GBIF taxonomy that was published in July 2012. The GBIF taxonomy was retrieved via this page.
This version is intended to supersede what I'll call "version 1.0" (the OTToL we've been using through March 2013, see here).
New features / changes since version 1.0:
- Use of synonyms from NCBI in resolving taxa from GBIF
- A more careful merging method, some errors fixed
- Update to more recent version of NCBI (previous was from approximately March 1)
- Inclusion of "unclassified" taxa from NCBI
- About 600,000 additional taxa from GBIF
- Ensures that a name occurring under disjoint nomenclatural authorities is considered homonymous
- The build process is repeatable with identifier semantics preserved across updates to the sources
- A full mapping from "preottol" is provided
OTT 2.0 is provided as a suite of files gathered into a compressed tarball; see http://files.opentreeoflife.org/ott/