Type species
The type system is central to the scientific naming of living things (organisms). How exactly it works is different depending on exactly what living thing is considered, but in a very general (and imprecise) sense it may be said that it fixes each name to a particular specimen, the type specimen. This helps in finding out what particular name is to be used for a particular living thing (or a group of living things, a taxon). There are international Codes of nomenclature which set out exactly how types are to be designated and used.