Holotype

based ontypeholotype specimentype specimenisotypetypestype specimensisotypesepitypehototype
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.wikipedia
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Duriatitan

Cetiosaurus humerocristatusDuriatitan humerocristatusPelorosaurus humerocristatus'' (Duriatitan)
For example, the holotype of Pelorosaurus humerocristatus (Duriatitan), a large herbivorous dinosaur from the early Jurassic period, is a fossil leg bone stored at the Natural History Museum in London.
The holotype specimen of Duriatitan, BMNH 44635, is a partial left upper arm bone which was found by R.I. Smith near Sandsfoot in the lower Kimmeridge Clay from Dorset.

Name-bearing type

name-bearingprimary typestype
Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types.
In the former case, there is either a single name-bearing type, a holotype, or a set of syntypes.

Nomen dubium

dubiousnomina dubiadubious name
This made the name Parasuchus hislopi a nomen dubium.
e. holotype, isotypes, syntypes, and paratypes) is lost or destroyed.

Type (biology)

type localitytype specimentype
In the absence of a holotype, another type may be selected, out of a range of different kinds of type, depending on the case, a lectotype or a neotype.
This particular specimen is the holotype for that species; the name Circus assimilis refers, by definition, to the species of that particular specimen.

Genetypes

The nomenclature of genetypes proposes that genetic sequences from a holotype should be referred to as a “hologenetype” (from: holotype and genetype), sequences from a topotype will be a “topogenetype,” and so forth.

Paratype

allotypeparatypesAdditional sample
In zoology and botany, a paratype is a specimen of an organism that helps define what the scientific name of a species and other taxon actually represents, but it is not the holotype (and in botany is also neither an isotype nor a syntype).

Marleyimyia xylocopae

M. xylocopae
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. a new species of capuchin monkey, genus Cebus, Marleyimyia xylocopae, or the Arunachal macaque Macaca munzala ).
The species was unusual in being described on the basis of two photographs, without the collection, designation of a holotype specimen and deposition in a suitable repository.

Organism

organismsflora and faunaliving organisms
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.

Species

specificspecific epithetspecific name
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.

Taxon

taxagrouppolytypic
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.

International Code of Zoological Nomenclature

ICZNzoological nomenclatureICZN Code
Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types.

International Code of Nomenclature for algae, fungi, and plants

International Code of Botanical NomenclatureICBNICN
In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN the definitions of types are similar in intent but not identical in terminology or underlying concept.

Plebejus idas

Idas blueLycaeides argyrognomon lotisPlebejus idas altarmenus
For example, the holotype for the butterfly Lycaeides idas longinus is a preserved specimen of that species, held by the Museum of Comparative Zoology at Harvard University.

Museum of Comparative Zoology

Harvard Museum of Comparative ZoologyMCZErnst Mayr Library
For example, the holotype for the butterfly Lycaeides idas longinus is a preserved specimen of that species, held by the Museum of Comparative Zoology at Harvard University.

Harvard University

HarvardHarvard CollegeUniversity of Harvard
For example, the holotype for the butterfly Lycaeides idas longinus is a preserved specimen of that species, held by the Museum of Comparative Zoology at Harvard University.

Fossil

fossilsfossil recordfossilized
Sometimes just a fragment of an organism is the holotype, particularly in the case of a fossil.

Herbivore

herbivorousherbivoresherbivory
For example, the holotype of Pelorosaurus humerocristatus (Duriatitan), a large herbivorous dinosaur from the early Jurassic period, is a fossil leg bone stored at the Natural History Museum in London.

Jurassic

Jurassic PeriodLate JurassicJurassic era
For example, the holotype of Pelorosaurus humerocristatus (Duriatitan), a large herbivorous dinosaur from the early Jurassic period, is a fossil leg bone stored at the Natural History Museum in London.

Natural History Museum, London

Natural History MuseumBritish Museum of Natural HistoryBritish Museum (Natural History)
For example, the holotype of Pelorosaurus humerocristatus (Duriatitan), a large herbivorous dinosaur from the early Jurassic period, is a fossil leg bone stored at the Natural History Museum in London.

London

London, EnglandLondon, United KingdomLondon, UK
For example, the holotype of Pelorosaurus humerocristatus (Duriatitan), a large herbivorous dinosaur from the early Jurassic period, is a fossil leg bone stored at the Natural History Museum in London.

Archosaur

Archosauriaarchosaursarchosaurian
For example, the crocodile-like archosaurian reptile Parasuchus hislopi Lydekker, 1885 was described based on a premaxillary rostrum (part of the snout), but this is no longer sufficient to distinguish Parasuchus from its close relatives.

Richard Lydekker

LydekkerLydekker's LineLydekker Line
For example, the crocodile-like archosaurian reptile Parasuchus hislopi Lydekker, 1885 was described based on a premaxillary rostrum (part of the snout), but this is no longer sufficient to distinguish Parasuchus from its close relatives.

Premaxilla

premaxillarypraemaxillapremaxillae
For example, the crocodile-like archosaurian reptile Parasuchus hislopi Lydekker, 1885 was described based on a premaxillary rostrum (part of the snout), but this is no longer sufficient to distinguish Parasuchus from its close relatives.

Rostrum (anatomy)

rostrumrostralrostra
For example, the crocodile-like archosaurian reptile Parasuchus hislopi Lydekker, 1885 was described based on a premaxillary rostrum (part of the snout), but this is no longer sufficient to distinguish Parasuchus from its close relatives.