lectotype
/ˈlɛktəˌtaɪp/
noun
- A single specimen chosen from a group of original specimens to serve as the official type specimen for a species when the original author did not designate one.
- The museum's curator selected a lectotype from the original batch of fossils.
- The biologist designated a lectotype for the butterfly species from the museum's collection.
- A lectotype helps clarify which organism a scientific name refers to.