Definition

Noun: * A reptile genus of suborder Plesiosauria: This is the scientific name for a specific genus of extinct marine reptiles. It belongs to the larger group known as Plesiosauria, which are characterized by their long necks, small heads, and large flippers.

Usage Notes

• This term is used exclusively in scientific and paleontological contexts. It is a formal taxonomic name used to classify a specific group of prehistoric animals.
• The word is a compound noun formed from the Latin-derived "genus" (meaning a biological classification rank) and "Plesiosaurus" (the name of the type species for this group).

Examples

• Scientific Classification:
  • Fossils attributed to the genus Plesiosaurus were first described in the early 19th century.
  • The paleontologist specialized in studying the anatomy of genus Plesiosaurus.

Advanced Usage

• In technical writing, the genus name is always italicized (or underlined in handwriting), and the first letter is capitalized: Genus Plesiosaurus.
• When used more generally to refer to the animal, the genus name is often shortened to the common noun "plesiosaur" (not italicized).

Variants and Related Words

• Plesiosaur (n): The common name for any member of the order Plesiosauria, which includes and other related genera.
  • The museum has a complete skeleton of a plesiosaur.
• Plesiosauria (n): The scientific name for the entire order or suborder to which this genus belongs.
  • Plesiosauria were a diverse group of Mesozoic marine reptiles.

Synonyms

• Plesiosaur (in a general, non-taxonomic sense)

Different Meanings

• This term has only one specific meaning in modern English: the scientific genus name for a group of extinct marine reptiles. It is not used in everyday language.

Noun

1. a reptile genus of suborder Plesiosauria