Subject Descriptors comprise the following fields and tables.

• Broad Terms
• Descriptors Data
• Systematics (including Super Taxa)
• Taxa Notes

To display this field on the Search page, review the instructions for Add Another Field.

Broad Terms

Broad Terms are controlled terms that denote broad or general concepts. Broad Terms are found in the Zoological Record Thesaurus. Most Broad Terms are found at the top levels of each hierarchy; however, other controlled terms from the thesaurus may be used as Broad Terms if they describe the major point or concept in the source document.

Examples

• Palaearctic region
• Parasites
• New Taxa

Descriptors

Descriptors include controlled terms from in the Zoological Record Thesaurus and non-controlled terms such as the names of specific organisms and modifiers.

Examples

• Petrochemical pollution
• Muscidae
• Musca domestica
• Anthropoidea SAME homoplasy

Systematics

Systematics include:

• Latin/scientific names for organisms
• Super Taxa, which are high-level systematic terms
• Systematics terms, which provide information about taxonomic changes and nomenclature

To find organism names and Super Taxa, click the thesaurus link. Then expand the Systematic hierarchy. To find Systematics terms, expand the Subject hierarchy. Then scroll down to the Systematics hierarchy.

Examples

• Salmonidae
• Ornithorhynchidae OR Tachyglossidae
• Thysanoptera SAME key to species

Taxa Notes

Terms classified under Taxa Notes are broad animal group names that refer to the Taxa discussed in a source document. Most are common/vernacular names rather than Latin/scientific names. To find Taxa Notes, click the thesaurus link. Taxa Notes is at the bottom of the list.

Examples

• Amphibians OR Reptiles
• Anthropods

Using the Search Aid

Click the thesaurus link to search for subject descriptors in the Zoological Record Thesaurus. You can select terms from the thesaurus and automatically transfer them to the Search page.

Because most descriptors are arranged in hierarchies, you will often find additional relevant terms for your search by browsing the thesaurus.

Using SAME

Use the SAME operator to combine terms to search Descriptors Data and Systematics. The search will return records in which the terms combined with SAME appear in the same row in the Descriptors Data or Systematics table. More information.