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754  Added Entry--Taxonomic Identification (R)

Input Standards

Optional/Optional
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa Taxonomic name (R) Mandatory/Mandatory
ǂc Taxonomic category (R) Mandatory/Mandatory
ǂd Common or alternative name (R) Optional/Optional
ǂx Nonpublic note (R) Optional/Optional
ǂz Public note (R) Optional/Optional
ǂ0 Authority record control number (R) Optional/Optional
ǂ2 Source of taxonomic identification (NR) Mandatory/Mandatory
ǂ8 Field link and sequence number (R) Optional/Optional

Definition

Taxonomic identification information associated with the item.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).

blank character

Undefined

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank ( blank character ).

blank character

Undefined

Subfields

 
ǂa Taxonomic name

The taxonomic name conforms to the syntax controls of the taxonomic classification system identified in subfield ǂ2. Precede subfield ǂa by subfield ǂc, which indicates the taxonomic hierarchical category to which the name belongs. Repeat subfield ǂa for each taxonomic name associated with the item. Each combination is input in repeatable subfields ǂc and ǂa in taxonomic hierarchical order.

754     ǂc phylum ǂa Vertebrata ǂd Vertebrates ǂc class ǂa Mammalia ǂd Mammals ǂc order ǂa Rodentia ǂd Rodents ǂc family ǂa Castoridae ǂd Beaver family ǂ2 Linnaean taxonomy
ǂc Taxonomic category

The taxonomic category to which the name in subfield ǂa belongs. The terms used in this subfield are specified by the thesaurus identified in subfield ǂ2. Subfield ǂc always precedes the data with which it is associated.

754     ǂc kingdom ǂa Plantae ǂc class ǂa Liliopsida ǂc family ǂa Pontederiaceae ǂc genus ǂa Eichhornia kunth ǂd Water hyacinth ǂ2 PLANTS database
ǂd Common or alternative name

The common or alternative name to which the name in subfield ǂa belongs. Subfield ǂd may refer to one or multiple occurrences of subfield ǂa.

754     ǂc species ǂa Ptychocheilus oregonensis ǂd Northern pikeminnow ǂ2 Integrated Taxonomic Information System (ITIS)
ǂx Nonpublic note

A note pertaining to the taxonomic identification of the item that is in a form not adequate for public display.

754     ǂc family ǂa Gekkonidae ǂc genus ǂa Hemidactylus ǂc species ǂa Turcicus ǂd Mediterranean gecko ǂd Mediterranean gekko ǂx Hemidactylus turcicus. ǂ2 Integrated Taxonomic Information System (ITIS)
ǂz Public note

A note pertaining to the taxonomic identification of the item that is in a form adequate for public display.

754     ǂc family ǂa Pottiaceae ǂc genus ǂa Barbula ǂc species ǂa agraria ǂx Barbula agraria. ǂz Species authority: Hedw. turcicus. ǂ2 PLANTS database
ǂ0 Authority record control number

For information about subfield ǂ0, see Control Subfields.

ǂ2 Source of taxonomic identification

The name or MARC code that identifies the source list from which the taxonomic identification was assigned. For the MARC code, see Taxonomic Classification Source Codes (http://www.loc.gov/standards/sourcelist/taxonomic.html).

754     ǂc class ǂa Actinopterygii ǂd Ray-finned fishes ǂc order ǂa Siluriformes ǂd Catfishes ǂc family ǂa Plotosidae ǂd Eel catfishes ǂc species ǂa Plotosus canius Hamilton ǂd Canine catfish eel ǂ2 Integrated Taxonomic Information System (ITIS)
ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

This page last revised: October 13, 2016