class Chondrichthyes

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Definition
  1. Noun:
    • A taxonomic class of cartilaginous fishes: "Class Chondrichthyes" is the scientific name for a major group of fish whose skeletons are made of cartilage rather than bone. This class includes sharks, rays, skates, and chimaeras.
Usage
  • The term "Class Chondrichthyes" is used in formal, scientific contexts such as biology, zoology, and marine science to classify and discuss this specific group of fish.
  • It is typically used as a singular noun when referring to the taxonomic class as a whole entity.
Examples
  • Noun:
    • Sharks and rays belong to Class Chondrichthyes.
    • The evolution of Class Chondrichthyes is a key topic in marine biology.
Advanced Usage
  • In phylogenetic discussions: The term is used to describe evolutionary relationships, e.g., "Class Chondrichthyes is considered a sister group to the bony fishes (Osteichthyes)."
  • In ecological studies: Used to refer to the role of these organisms in an ecosystem, e.g., "Predators from Class Chondrichthyes help maintain the health of coral reefs."
Variants and Related Words
  • Chondrichthyan (n): An individual member of the Class Chondrichthyes; a cartilaginous fish.
    • The great white shark is a well-known chondrichthyan.
  • Elasmobranchii (n): A subclass within Chondrichthyes that includes sharks, rays, and skates.
  • Holocephali (n): A subclass within Chondrichthyes that includes chimaeras (ratfish, ghost sharks).
Synonyms
  • Cartilaginous fishes: The common, descriptive name for the group.
  • Chondrichthyans: A more technical synonym for the members of this class.
Related Phrases
  • "Member of Chondrichthyes": A phrase used to specify an organism's classification.
    • The manta ray is a fascinating member of Chondrichthyes.
Noun
  1. cartilaginous fishes

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