
1) Example 2) Model 3) Type specimen
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https://www.crosswordclues.com/clue/holotype

a type chosen by the author of a name; cf. a lectotype, which is chosen by a later author.
Found on
http://en.wikipedia.org/wiki/Glossary_of_botanical_terms

A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several such, but explicitly designated as the holotype. Under the ICZN, a holotype is one of several kinds of n...
Found on
http://en.wikipedia.org/wiki/Holotype

A single specimen designated or indicated the type specimen by the original author at the time of publication of the original description
Found on
http://entomology.ifas.ufl.edu/choate/insectclass/glossary_terms.htm

The single specimen designated or indicated as 'the type' by the original author at the time of publication of the original description.
Found on
http://ppathw3.cals.cornell.edu/glossary/Defs_H.htm

(from the article `taxonomy`) A complex nomenclature is applied to the different sorts of type specimens. The holotype is a single specimen designated by the original describer of ...
Found on
http://www.britannica.com/eb/a-z/h/63

The type specimen of a species is the actual insect from which the original description of that species was produced
Found on
http://www.earthlife.net/insects/glossary.html

A holotype is a specimen of an organisn that serves as the standard for a species or a subspecies; it is often the first of its kind to be scientifically reported and described.
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http://www.enchantedlearning.com/subjects/dinosaurs/glossary/

<zoology> A single specimen designated or indicated the type specimen by the original author at the time of publication of the original description. ... (09 Jan 1998) ...
Found on
http://www.encyclo.co.uk/local/20973

Among the primary types, a holotype is the original specimen selected as the type, and from which the original description for the type or the original illustration (photograph) was made.
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http://www.encyclo.co.uk/visitor-contributions.php

specimen that serves as the standard bearer of a species or subspecies name.
Found on
http://www.fossilmall.com/Science/Glossary.htm

(Gk: holos=the whole; typos=figure, type) the species used for naming and describing a species. Holotypes are carefully stored in museums around the world, because they are the ultimate reference for any named species.
Found on
http://www.seafriends.org.nz/books/glossary.htm

The specimen of an animal (or plant) which is designated in the publication when the organism is named, as representing what is meant by the new name. The holotype specimen may or may not be the first ever collected, and may or may not be a good example of its kind. But it is the official designation: "THIS name refers to THIS animal." Often, other...
Found on
https://www.encyclo.co.uk/local/21284

The specimen designated by the taxonomist to which the name of a newly created taxon applies. If there is ever a dispute about the validity of a taxon, then the holotype is critical in deciding its status relative to other described taxa.
Found on
https://www.encyclo.co.uk/local/22222

a single specimen selected by the author of a species as its type, or the only specimen known at the time of description
Found on
https://www.encyclo.co.uk/local/22346

type specimen
Found on
https://www.encyclo.co.uk/local/22591

A single physical example (or illustration) of an organism used to formally describe a species. It is either the single such physical example (or illustration), or one of several such that has been explicitly designated as the holotype. Holotypes act as a reference point for taxonomic work.
Found on
https://www.encyclo.co.uk/local/22658

the type specimen used in the original description of a species.
Found on
https://www.infoplease.com/dictionary/holotype
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