Natural science > Evolutionary biology > Darwinism >
Monotypic taxon
Definition:
A monotypic taxon is a classification category that contains only a single subordinate taxon. This means that a monotypic taxon includes just one species, genus, family, or other level of classification within a larger group.
The Concept of Monotypic Taxon
In the field of evolutionary biology, the term "monotypic taxon" refers to a taxonomic group that contains only a single, individual species. This means that the entire taxon is represented by a single species, with no other subordinate taxa placed beneath it.
Characteristics of Monotypic Taxa:
Monotypic taxa are unique in that they lack any further divisions or subgroups within their classification. This solitary status makes them distinct from polytypic taxa, which include multiple species and subspecies within their ranks.
Example in Nature:
An example of a monotypic taxon is the Steller's sea cow (Hydrodamalis gigas). This large marine mammal, related to the manatees and dugongs, was once abundant in the North Pacific but is now extinct. Despite its extinction, the Steller's sea cow remains a monotypic taxon due to the absence of any other closely related species.
Significance in Evolutionary Biology:
Monotypic taxa play a crucial role in understanding evolutionary relationships and biodiversity. By studying these solitary branches on the tree of life, scientists can gain insights into the unique adaptations and evolutionary histories of these distinct organisms.
As our knowledge of the natural world continues to expand, the concept of monotypic taxa serves as a fascinating reminder of the diversity and complexity of life on Earth.
If you want to learn more about this subject, we recommend these books.
You may also be interested in the following topics: