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...

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

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...

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

"Eugen Teodorovici spune că va reveni ca președinte sau premier și propune o taxă de pe vremea lui Ceaușescu în locul TVA". HotNews (in Romanian). 22 February...

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

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...

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...

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

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...

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...

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...

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...

absolute ranks. Taxa are hierarchical groups of organisms, and their ranks describes their position in this hierarchy. High-ranking taxa (e.g. those considered...

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...

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...

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...

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

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

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...

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

physical characteristics (synapomorphies) that distinguish them from other taxa. These five synapomorphies are a notochord, a hollow dorsal nerve cord, an...

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...

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...

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

taxonomy attempt to represent the precise interrelatedness of the various taxa. However, the taxonomy of the Gastropoda is constantly being revised and...

independence is only partial since the names of families and other higher taxa are usually based on genera.[citation needed] Taxonomy includes both nomenclature...

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...

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...