Searching the Data Citation Index Thesaurus
This search aid allows you to select one or more Super Taxa and/or Taxa Notes terms to add to your search query.
You can expand each hierarchy to browse for controlled terms and to see their positions in the hierarchy. You can also search the entire thesaurus to find the appropriate controlled term(s) to add to your search query.
Browsing for Super Taxa and Taxa Notes Terms
Thesaurus Index Terms
Broader terms are known to be wider in scope than the one selected from the thesaurus hierarchy. Only the terms one level wider are given. If a term has multiple broader terms, then more than one hierarchy will appear.
Narrower terms are generally terms that are more focused in scope. Only the terms one level narrower are given. If a term has multiple broader terms, all narrower terms may not necessarily be in the same branch of the hierarchy.
Controlled terms related to the preferred term.
Scope notes generally describe how a term or code is used and/or provide historical information about its use.