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

http://aims.fao.org/aos/agrovoc/xDef_ccca5b8c

xsd:dateTime 2018-07-10T13:59:56Z
xsd:dateTime 2018-07-10T12:52:31Z
rdf:langString 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

data from the linked data cloud