BC Biosystematic Codes

bc75402 in bc

arachnida in bc

The BC field contains one or more five-digit codes representing broad taxonomic categories for organisms discussed in the original document. Each Biosystematic Code is prefaced by the letters "BC" and is followed by a text equivalent called a Biosystematic Heading. You can search for either the code or the corresponding text heading.

You can also search for a range of Biosystematic Codes by using the Super Taxa (ST) field.

Note: This field is available in data added to the database from 1969 through 1992.