This group has not been placed at any particular taxonomic rank.

There are however different views on their taxonomic rank.

Diels' taxonomic rank for the species is still supported by some.

By extension, macrotaxonomy is the study of groups at higher taxonomic ranks than species.

The order was proposed in 1977 to recognize the family Hymenochaetaceae at a higher taxonomic rank.

The name Tremandreae is still sometimes used for this group, but at the taxonomic rank of tribe.

Monocots have almost always been recognized as a group, but with various taxonomic ranks and under several different names.

These groups are informal and are not understood to have any particular taxonomic rank.

Hooker did not use the modern system of suffixes for taxonomic ranks.

Ecotypes have no main taxonomic rank in modern biological classification.

In biology, a phylum is a taxonomic rank below kingdom and above class.

None of these names are terms of taxonomic rank.

A species is defined as a taxonomic rank.

They were given the taxonomic rank of Kingdom by Linnaeus.

The published classification deliberately did not use formal taxonomic ranks, including that of "kingdom".

An alphabetic arrangement is used within each taxonomic rank.

The taxonomic rank of the endemic Taiwanese salmon is in dispute.

Examples of taxonomic ranks are species, genus, family, class, kingdom, etc.

Their treatment at equal taxonomic rank reflects this.

Crescentiina is one of a type of name with no definite taxonomic rank.

These groups still retained their formal Linnaean taxonomic ranks.

The term "alliance" is not a taxonomic rank defined in any of the nomenclature codes.

Diadectomorpha is most commonly given the rank of order when formal taxonomic ranks are applied.

Within the subgenus but above the level of species a number of additional taxonomic ranks have been created.

The mesangiosperms are usually recognized in classification systems that do not assign groups to taxonomic rank.