polyodontidae

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Definition

Proper noun * Polyodontidae: The scientific family name for paddlefishes. It is a taxonomic family of primitive ray-finned fish characterized by their elongated, paddle-like snouts (rostrums). Members of this family are found in large river systems.

Usage

"Polyodontidae" is used exclusively in formal, scientific contexts such as biology, zoology, ichthyology, and paleontology. It refers to the taxonomic family as a whole, not to individual fish.

Examples * The fossil record suggests that the family Polyodontidae was once more widespread. * All extant paddlefish species belong to the family Polyodontidae. * The distinguishing feature of Polyodontidae is the presence of a long, cartilaginous rostrum.

Advanced Usage
  • In taxonomic hierarchy, Polyodontidae is a family within the order Acipenseriformes, which also includes sturgeons (family Acipenseridae).
Variants and Related Words
  • Polyodontid (noun): A member of the Polyodontidae family; a paddlefish.
    • The museum has a skeleton of a large polyodontid.
  • Polyodontid (adjective): Of or relating to the Polyodontidae family.
    • They studied polyodontid anatomy.
Synonyms
  • Paddlefish family: The common name for the taxonomic family Polyodontidae.
Different Meanings

This word has only one specific meaning as a scientific family name in zoological taxonomy. It does not have general English usage or idiomatic meanings.

Noun
  1. paddlefishes

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