Taxon - Revision history

Christoph at 04:58, 13 September 2006

2006-09-13T04:58:48Z

Christoph: +Cat

2005-12-30T20:16:48Z

+Cat

Christoph: Started article

2005-12-30T01:15:32Z

Started article

New page

A '''taxon''' (plural '''taxa'''), or '''taxonomic unit''', is a grouping of organisms (named or unnamed). Once named, a taxon will usually have a rank and can be placed at a particular level in a hierarchy.

A broad scheme of ranks in hierarchical order:
:[[Kingdom (biology)|Kingdom]]
:[[Phylum (biology)|Phylum]] (animals or plants) or [[Division (botany)|Division]] (plants)
:[[Class (biology)|Class]]
:[[Order (biology)|Order]]
:[[Family (biology)|Family]]
:[[Genus]]
:[[Species]]
:[[Subspecies]]

A prefix is used to indicate a ranking of lesser importance. The prefix ''super-'' indicates a rank above, the prefix ''sub-'' indicates a rank below. In zoology the prefix ''infra-'' indicates a rank below ''sub-''. For instance:

:Superclass
:Class
:Subclass
:Infraclass

Do note that rank is relative, and restricted to the particular scheme used. For example, [[liverworts]] have been grouped, in various systems of classification, as a family, order, or a class. The use of ranks is challenged by users of [[cladistics]] and has led to the [[PhyloCode]] being proposed.

[[Category:Academic Research]]

@@ Line 20: / Line 20: @@
 Do note that rank is relative, and restricted to the particular scheme used. For example, [[liverworts]] have been grouped, in various systems of classification, as a family, order, or a class. The use of ranks is challenged by users of [[cladistics]] and has led to the [[PhyloCode]] being proposed.
-[[Category:Academic Research]]
+{{Phylogenetics}}
 [[Category:Phylogenetics]]

@@ Line 2: / Line 2: @@
 A broad scheme of ranks in hierarchical order:
-:[[Kingdom (biology)|Kingdom]]
+* [[Kingdom (biology)|Kingdom]]
-:[[Phylum (biology)|Phylum]] (animals or plants) or [[Division (botany)|Division]] (plants)
+* [[Phylum (biology)|Phylum]] (animals or plants) or [[Division (botany)|Division]] (plants)
-:[[Class (biology)|Class]]
+* [[Class (biology)|Class]]
-:[[Order (biology)|Order]]
+* [[Order (biology)|Order]]
-:[[Family (biology)|Family]]
+* [[Family (biology)|Family]]
-:[[Genus]]
+* [[Genus]]
-:[[Species]]
+* [[Species]]
-:[[Subspecies]]
+* [[Subspecies]]
 A prefix is used to indicate a ranking of lesser importance. The prefix ''super-'' indicates a rank above, the prefix ''sub-'' indicates a rank below. In zoology the prefix ''infra-'' indicates a rank below ''sub-''.  For instance:
-:Superclass
+* Superclass
-:Class
+* Class
-:Subclass
+* Subclass
-:Infraclass
+* Infraclass
 Do note that rank is relative, and restricted to the particular scheme used. For example, [[liverworts]] have been grouped, in various systems of classification, as a family, order, or a class. The use of ranks is challenged by users of [[cladistics]] and has led to the [[PhyloCode]] being proposed.
 [[Category:Academic Research]]