lectotype

[lek-tuh-tahyp]
noun Biology.
  1. a specimen designated as the type of a species or subspecies when no holotype was designated by the original author of the name.
Related formslec·to·typ·ic [lek-tuh-tip-ik] /ˌlɛk təˈtɪp ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of lectotype