holotype
ho·lo·type
noun \ˈhō-lə-ˌtīp, ˈhäl-ə-\Definition of HOLOTYPE
1
: the single specimen designated by an author as the type of a species or lesser taxon at the time of establishing the group
2
: the type of a species or lesser taxon designated at a date later than that of establishing a group or by another person than the author of the taxon
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