In biology, a taxon (back-formation from taxonomy; pl.: taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to...

Look up taxa, taxon, taxonomy, or taxonomic in Wiktionary, the free dictionary. Taxa or Taxon may refer to: Taxa as the plural of taxon, a concept in biological...

illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most...

generally, recent) organisms. It is the study of extant taxa (singular: extant taxon): taxa (such as species, genera and families) with members still...

In paleontology, a Lazarus taxon (plural taxa) is a taxon that disappears for one or more periods from the fossil record, only to appear again later. Likewise...

or more other taxa. Wastebasket taxa are by definition either paraphyletic or polyphyletic, and are therefore not considered valid taxa under strict cladistic...

Taxa is a Danish television drama in 56 episodes, written by Stig Thorsboe and produced by Rumle Hammerich for the Danish Broadcasting Corporation. The...

biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of...

In paleontology, an Elvis taxon (plural Elvis taxa) is a taxon that has been misidentified as having re-emerged in the fossil record after a period of...

condition of a taxonomic grouping being a clade – that is, a grouping of taxa which meets these criteria: the grouping contains its own most recent common...

This is an index of lists of virus taxa. List of higher virus taxa, i.e. all taxa above the rank of family List of virus families and subfamilies List...

Dark taxa are chiefly detected by DNA sequencing, and in particular environmental metabarcoding. Dark taxa make up a paraphyletic group, with dark taxa appearing...

species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes...

for different species. In it there are 8 taxa of amphibians, 21 taxa of reptiles, 128 taxa of birds, and 74 taxa of mammals, in total 231. There are also...

Taxadiene (taxa-4,11-diene) is a diterpene. Taxadiene is the first committed intermediate in the synthesis of taxol. Six hydroxylation reactions, and a...

In the history of the Linnaean classification system, many taxa (e.g. species, genera, families, and higher taxonomic ranks) have become defunct or obsolete...

Such early representatives of a group are usually termed "basal taxa" or "sister taxa," depending on whether the fossil organism belongs to the daughter...

than once, independently. They may also arise when existing taxa are changed, as when two taxa are joined to become one, a species is moved to a different...

In paleontology, a zombie taxon (plural zombie taxa) or the zombie effect refers to a fossil that was washed out of sediments and re-deposited in rocks...

portal This list of fossil arthropods described in 2018 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids, and other fossil arthropods...

category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15,636) in the IUCN database still use the code "LR/lc", which indicates...

ranks of taxa are: kingdom, division or phylum, class, order, family, genus, and species. According to Art 4.1 the secondary ranks of taxa are tribe...

cladistics, having been coined by zoologist Willi Hennig to apply to well-known taxa like Reptilia (reptiles), which is paraphyletic with respect to birds. Reptilia...

and organize the world around them, typically making generous use of form taxa such as "shrubs", "bugs", "ducks", "fish", "algae", "vegetables", or of economic...

Threatened Taxa; ZOO hosts the journal's website. List of zoo associations "Members". waza.org. WAZA. Retrieved 2 July 2011. Journal of Threatened Taxa Downloads:...

the judgement of taxonomists in either combining taxa described under multiple names, or splitting taxa which may bring available names previously treated...

infraspecies. A "taxon", plural "taxa", is a group of organisms to be given a particular name. The scientific names of botanical taxa are regulated by the International...

used for locomotion. The appendages of most crustaceans and some extinct taxa such as trilobites have another segmented branch known as exopods, but whether...

improve its documentation and data quality, and to include peer reviews of taxa on the Red List. The list is also open to petitions against its classifications...

palaeontology, reflects uncertainty; the goal of science is to move "form taxa" to biological taxa whose affinity is known. Form taxonomy is restricted to fossils...