Definition

Noun: 1. A taxonomic genus within the family Caenolestidae: Genus Caenolestes is the type genus for the family Caenolestidae, which comprises small, shrew-like marsupials commonly known as shrew opossums or rat opossums, native to the Andes of South America.

Usage Notes

• The term is used in formal, scientific contexts, specifically in the fields of biology, zoology, and taxonomy.
• It is always capitalized, as is standard for genus names in biological nomenclature.
• It is typically used with a singular verb when referring to the genus as a single taxonomic unit.

Examples

• Scientific Classification: "The genus Caenolestes is one of the few surviving lineages of the order Paucituberculata."
• Descriptive Context: "Researchers are studying the unique dentition of species within the genus Caenolestes."
• Comparative Context: "Unlike the more familiar Didelphis (common opossum), members of the genus Caenolestes are adapted to high-altitude forests."

Advanced Usage

• In Phylogenetic Studies: The genus Caenolestes is often discussed in research concerning marsupial evolution and biogeography, representing a distinct and ancient branch of the marsupial family tree.

Variants and Related Words

• Caenolestidae (n.): The family name to which the genus belongs.
• Caenolestid (n. or adj.): A common name for any member of the family Caenolestidae; also used as an adjective (e.g., caenolestid morphology).
• Shrew opossum / Rat opossum (n.): The common English names for animals in this genus and family.

Synonyms

• Shrew opossum genus (common descriptive synonym, not a formal taxonomic term).

Different Meanings

This term has a single, specific meaning in scientific taxonomy. It does not have general English definitions outside this context.

Noun

1. type genus of the family Caenolestidae