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...

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

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...

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...

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...

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

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...

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

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...

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

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

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...

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...

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

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...

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:...

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...

upper-level taxa. See also Comparison of computer viruses This is an alphabetical list of biological virus higher taxa. It includes those taxa above family...

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

names, synonyms, and common names for terrestrial, marine, and freshwater taxa from all biological kingdoms (animals, plants, fungi, and microbes). While...

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...

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...

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

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

Taxa Innocentiana was a decree of Pope Innocent XI of 1 October 1678 that regulated the fees that episcopal chancery offices might demand or accept for...

or climate change such as an ice age. When a relict is representative of taxa found in the fossil record, and yet is still living, such an organism is...

it. CITES works by subjecting international trade in specimens of listed taxa to controls as they move across international borders. CITES specimens can...