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951. Species - Types of Species
951. Species - Types of Species
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Top 10 Different Types Of Alien Species On Earth!
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Different Mermaid Species
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Most MYSTERIOUS Extinct Human Species!
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Alien Races - Over 82 Species On Earth! [Part 1]
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4 Species of Snapper
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10 Mysterious Extinct Human Species
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10 Creepiest Shark Species
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What is a type species?
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All Hyena Species - Species List
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5 Frightening Species of Tyrannosaurus Rex (You've Never Heard Of)
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5 Alien Species Already Walking Amongst Us
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[FREE DL] Big Sean x Travis Scott Type Beat 2017 "Species" (Prod By.Sdotfire & John Melo)
[FREE DL] Big Sean x Travis Scott Type Beat 2017 "Species" (Prod By.Sdotfire & John Melo)
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The Different Species of Cannabis
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TOP 10 Xenomorph SPECIES
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The Most Rare Shark Species Hidden in The Ocean
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All Crocodilians Species - Species List
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20 TYPES OF FINCH SPECIES
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Alien Species from A-Z: "The Second Edition"
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WHAT HAMSTER SPECIES IS IT?
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Identifying The 5 Species Of Hamster
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types of freshwater fish species CICHLIDS
types of freshwater fish species CICHLIDS
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16 Amazing Fox Species
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42 Different Species Of Sharks
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All Bears Species - Species List
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9 Species of Amateur Photographer
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Type species Meaning
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Published: 2016/11/26
Channel: arowana
All Lizard Species (A to Z) - Geckos, Monitors, Anoles, Iguanas And Chameleons
All Lizard Species (A to Z) - Geckos, Monitors, Anoles, Iguanas And Chameleons
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Channel: Animal Breeds
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Episode 9 - Beginner Tarantula Species
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Published: 2010/12/27
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Published: 2015/10/18
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How to Identify the 3 Different Bass Species
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Asian Female Species
Published: 2013/03/19
Channel: Off the Great Wall
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All Leopard (Sub)Species - Species List
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Channel: Gilles Delhaye
Different wood species - Over 90 woodspecies!!
Different wood species - Over 90 woodspecies!!
Published: 2012/10/24
Channel: Nicewoodworkingulove
THE 5 DOMESTICATED HAMSTER SPECIES
THE 5 DOMESTICATED HAMSTER SPECIES
Published: 2017/04/02
Channel: Victoria Raechel
New World Vultures - All Vultures - Species List
New World Vultures - All Vultures - Species List
Published: 2017/04/24
Channel: Gilles Delhaye
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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Cygnus cygnus, the whooper swan, is the type species of the genus Cygnus.

In zoological nomenclature, a type species (species typica) is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s).[1] A similar concept is used for suprageneric groups called a type genus.

In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types.[2]

In bacteriology, a type species is assigned for each genus.[3]

Every named genus or subgenus in zoology, whether or not currently recognized as valid, is theoretically associated with a type species. In practice, however, there is a backlog of untypified names defined in older publications when it was not required to specify a type.

Use in zoology[edit]

A type species is both a concept and a practical system that is used in the classification and nomenclature (naming) of animals. The "type species" represents the reference species and thus "definition" for a particular genus name. Whenever a taxon containing multiple species must be divided into more than one genus, the type species automatically assigns the name of the original taxon to one of the resulting new taxa, the one that includes the type species.

The term "type species" is regulated in zoological nomenclature by article 42.3 of the International Code of Zoological Nomenclature, which defines a type species as the name-bearing type of the name of a genus or subgenus (a "genus-group name") is the "type species". In the Glossary, type species is defined as

"The nominal species that is the name-bearing type of a nominal genus or subgenus".[4]

The type species permanently attaches a formal name (the generic name) to a genus by providing just one species within that genus to which the genus name is permanently linked (i.e. the genus must include that species if it is to bear the name). The species name in turn is fixed, in theory, to a type specimen.

For example, the type species for the land snail genus Monacha is Monacha cartusiana. That genus is currently placed within the family Hygromiidae. The type genus for that family is the genus Hygromia.

The concept of the type species in zoology was introduced by Pierre André Latreille.[5]

Citing[edit]

The International Code of Zoological Nomenclature states that the original name (binomen) of the type species should always be cited. It gives an example in Article 67.1. Astacus marinus Fabricius, 1775 was later designated as the type species of the genus Homarus, thus giving it the name Homarus marinus (Fabricius, 1775). However, the type species of Homarus should always be cited using its original name, i.e. Astacus marinus Fabricius, 1775.[1]

Although the International Code of Nomenclature for algae, fungi, and plants does not contain the same explicit statement, examples make it clear that that the original name is used, so that the "type species" of a genus name need not have a name within that genus. Thus in Article 10, Ex. 3, the type of the genus name Elodes is quoted as the type of the species name Hypericum aegypticum, not as the type of the species name Elodes aegyptica.[2] (Elodes is not now considered distinct from Hypericum.)

See also[edit]

References[edit]

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