Information AboutHolotype |
| CATEGORIES ABOUT HOLOTYPE | |
| zoological nomenclature | |
| botanical nomenclature | |
|
For example, the holotype for the Butterfly '' Lycaeides Idas Longinus '' is held by the Museum of Comparative Zoology at Harvard University , and the holotype for the extinct Mammal '' Cimolodon '' is at the University Of Alberta . A holotype is not necessarily 'typical' of that taxon, although ideally it should be. Sometimes just a fragment of an organism is the holotype, for example in the case of a rare Fossil . The holotype of ''Pelorosaurus humerocristatus'', a large Herbivore Dinosaur from the early Jurassic period, is a fossil leg bone stored at the Natural History Museum in London . Even under unusual circumstances a good quality photograph can be submitted as holotype. Even if a better specimen is subsequently found, the holotype is not superseded. In the absence of a holotype (e.g. it was lost) another type may be selected, out of a range of different kinds of type, depending on the case. Note that in the '' ICBN '' and '' ICZN '' the definitions of types are similar in intent but not identical in terminology or underlying concept. For example in both the ''ICBN'' and the ''ICZN'' a " 2003 .. The procedures for the designation of a new type specimen when the original is lost come into play for some recent, high-profile species descriptions in which the specimen designated as the holotype was a living individual that was allowed to remain in the wild (e.g.,Mendes Pontes, A.R., Malta A. and Asfora, P.H. 2006. A new species of capuchin monkey, genus ''Cebus'' Erxleben (Cebidae, Primates): found at the very brink of extinction in the Pernambuco Endemism Centre. Zootaxa 1200: 1-12.Sinha, A.,Datta, A., Madhusudan, M. D. and Mishra, C. (2004). "The Arunachal macaque ''Macaca munzala'': a new species from western Arunachal Pradesh, northeastern India". that allow for the designation of a neotype. Remarkably, the Code explicitly states that the designation of a neotype must be based upon an actual physical specimen that is "the property of a recognized scientific or educational institution", but there is no such requirement for a holotype. Under the ''ICBN'', also, a replacement type could be appointed by such a procedure, but this would be called a "conserved type". However, a conserved type would not be appointed in the case of a type that is insufficiently clear: in that case an additional and clarifying type could be designated, a so-called "epitype". Great care must be used in speaking of types, as definitions are very precise. See also
References |
|
|