genus nautilus
Definition
Noun: 1. A taxonomic genus of cephalopod mollusks: This is the genus name for the chambered nautilus, a marine animal with a coiled, pearly shell divided into chambers. It is the type genus and the only surviving (recent) representative of the family Nautilidae.
Usage Notes
- "Genus Nautilus" is a scientific, taxonomic term used in biology and zoology. It is always capitalized because it is a proper noun referring to a specific genus.
- In everyday language, the common name "nautilus" (not capitalized) is typically used to refer to the animal itself.
Examples of Usage
- Scientific Context:
- The fossil record shows that Genus Nautilus has remained relatively unchanged for millions of years.
- In the classification system, Genus Nautilus belongs to the subclass Nautiloidea.
Advanced Usage
- The term is used to distinguish this living genus from other extinct genera within the broader nautiloid family.
- It is often cited in discussions about "living fossils" due to its long evolutionary history with few morphological changes.
Variants and Related Words
- Nautilus (n): The common name for any species within Genus Nautilus, most famously the (the pearly nautilus).
- Nautilidae (n): The family to which Genus Nautilus belongs.
- Nautiloidea (n): The subclass that includes all nautiloids, both living and extinct.
Synonyms
- Chambered nautilus (common name for the animal)
- Pearly nautilus (common name for the animal)
Note: There are no direct, non-scientific synonyms for the taxonomic term "Genus Nautilus" itself.
Noun
-
type genus and sole recent representative of the family Nautilidae
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