| Ophionereididae | |
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| Ophionereis reticulata | |
| Scientific classification | |
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| Order: | |
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| Family: | Ophionereididae Ljungman, 1867 |
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| Synonyms | |
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Ophionereididae are a family of brittle stars.
| Ophionereididae | |
|---|---|
| | |
| Ophionereis reticulata | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Suborder: | |
| Family: | Ophionereididae Ljungman, 1867 |
| Genera | |
See text | |
| Synonyms | |
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Ophionereididae are a family of brittle stars.
Ophionereididae has been placed (along with Ophiocomidae) to the superfamily Ophiocomidea and infraorder Chilophiurina [1] or suborder Chilophiurina [2] in different classifications. Ophionereididae contains the following genera: [3]
Systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time. Relationships are visualized as evolutionary trees. Phylogenies have two components: branching order and branch length. Phylogenetic trees of species and higher taxa are used to study the evolution of traits and the distribution of organisms (biogeography). Systematics, in other words, is used to understand the evolutionary history of life on Earth.
In biology, taxonomy is the scientific study of naming, defining (circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum, class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms.
Herring are forage fish, mostly belonging to the family of Clupeidae.
Family is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family".
Order is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families.
Virus classification is the process of naming viruses and placing them into a taxonomic system similar to the classification systems used for cellular organisms.
In biology, a taxon is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion, especially in the context of rank-based ("Linnaean") nomenclature. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping.
The Integrated Taxonomic Information System (ITIS) is an American partnership of federal agencies designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagency group within the US federal government, involving several US federal agencies, and has now become an international body, with Canadian and Mexican government agencies participating. The database draws from a large community of taxonomic experts. Primary content staff are housed at the Smithsonian National Museum of Natural History and IT services are provided by a US Geological Survey facility in Denver. The primary focus of ITIS is North American species, but many biological groups exist worldwide and ITIS collaborates with other agencies to increase its global coverage.
The International Committee on Taxonomy of Viruses (ICTV) authorizes and organizes the taxonomic classification of and the nomenclature for viruses. The ICTV develops a universal taxonomic scheme for viruses, and thus has the means to appropriately describe, name, and classify every virus taxon. The members of the International Committee on Taxonomy of Viruses are considered expert virologists. The ICTV was formed from and is governed by the Virology Division of the International Union of Microbiological Societies. Detailed work, such as identifying new taxa and delimiting the boundaries of species, genera, families, etc. typically is performed by study groups of experts in the families.
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently.
The Ophiurida are an order of echinoderms within the class Ophiuroidea. It includes the vast majority of living brittle stars.
The Gnathophiurina are a group of Ophiuroidea mostly treated as suborder.
Ophiurina are a suborder of brittle stars containing the majority of living brittle star species.
Ophiocomidae are a family of brittle stars of the suborder Ophiurina.
A species (pl. species) is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour, or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined.
Plazi is a Swiss-based international non-profit association supporting and promoting the development of persistent and openly accessible digital bio-taxonomic literature. Plazi is cofounder of the Biodiversity Literature Repository and is maintaining this digital taxonomic literature repository at Zenodo to provide access to FAIR data converted from taxonomic publications using the TreatmentBank service, enhances submitted taxonomic treatments by creating a version in the XML format Taxpub, and educates about the importance of maintaining open access to scientific discourse and data. It is a contributor to the evolving e-taxonomy in the field of Biodiversity Informatics.
Taxonomy is the practice and science of categorization or classification.
The Open Tree of Life is an online phylogenetic tree of life – a collaborative effort, funded by the National Science Foundation. The first draft, including 2.3 million species, was released in September 2015. The Interactive graph allows the user to zoom in to taxonomic classifications, phylogenetic trees, and information about a node. Clicking on a species will return its source and reference taxonomy.
Amphilepidida is an order of echinoderms belonging to the class Ophiuroidea.
Ophionereis is a genus of echinoderms belonging to the family Ophionereididae.
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