thalarctos
Definition
Proper noun A taxonomic genus name within the family Ursidae. It refers specifically to polar bears. In some biological classification systems, this name is used to denote polar bears as a distinct genus.
Usage Notes
- The term 'Thalarctos' is a scientific name used primarily in zoology and taxonomy.
- Its usage is technical and specific to biological classification. It is not used in everyday language.
- In many modern classification systems, the polar bear is classified under the genus (as ), making a synonym or an alternative historical classification.
Examples of Usage
- Scientific Context:
- The fossil record provides insights into the evolution of the genus Thalarctos.
- Some older texts list the polar bear under the classification Thalarctos maritimus.
Advanced Usage
- The name is often seen in debates or discussions about taxonomic revision, where scientists argue for or against recognizing as a separate genus from based on genetic and morphological data.
Variants and Related Words
- Ursus maritimus (n): The currently more widely accepted scientific name for the polar bear, placing it within the genus .
- Polar bear (n): The common English name for the large, white bear native to the Arctic region.
Synonyms
- Polar bear genus (informal description in a scientific context)
Notes on Different Meanings
This word has only one specific meaning: a taxonomic genus for polar bears. It does not have idiomatic meanings or phrasal verbs, as it is a highly specialized scientific term.
Noun
-
polar bears; in some classifications not a separate genus from Ursus
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