ceratodus

Thân thiện

A paleontologist carefully examines a fossilized ceratodus.

Definition

1. Noun:
   • An extinct genus of lungfish: "Ceratodus" refers to a genus of prehistoric lungfish that lived during the Mesozoic era. These fish are known from fossil records and are an important group for understanding the evolution of lungfish.

Usage Examples

• Noun:
  • Fossils of the ceratodus have been found on several continents.
  • The ceratodus is studied by paleontologists interested in vertebrate evolution.

Advanced Usage

• In scientific classification: The term is used capitalized () as it is a proper genus name.
  • The species was later reclassified under the genus Ceratodus.

Variants and Related Words

• Ceratodontidae (n): The family name to which the genus belongs.
• Dipnoi (n): The subclass that includes all lungfish, including extinct forms like .

Synonyms

• Extinct lungfish: A descriptive synonym.
• Fossil lungfish: Another descriptive term emphasizing its state of preservation.

Notes on Meaning

• This word has a single, specific meaning in paleontology and zoology. It refers exclusively to this extinct genus and is not used in general or figurative language.

Học thuật

Noun

1. extinct lungfish