Plesiosaurus is a prehistoric marine reptile that lived during the Jurassic period. Its name comes from the Greek words "plesios" meaning "near" and "sauros" meaning "lizard". The word is spelled phonetically as /ˌpliːsioʊˈsɔːrəs/, with stress on the second syllable. The "p" is silent, and the "s" in the first syllable is pronounced as a "z" sound. The "os" in the second syllable is pronounced with a long "o" sound, and the "au" in the third syllable is pronounced as "aw".
Plesiosaurus is a noun that refers to an extinct marine reptile that lived during the Mesozoic Era, specifically in the Jurassic period. It belongs to the order Plesiosauria, which is characterized by their long necks, small heads, and large, paddle-like limbs. The name "plesiosaurus" is derived from the Greek words "plesios" meaning "near" and "sauros" meaning "lizard," indicating the close resemblance to a lizard-like creature.
The plesiosaurus had a unique and distinct body structure, with a short tail, broad upper body, and a long neck containing numerous vertebrae. It was well-adapted for an aquatic lifestyle, utilizing its powerful paddles to navigate the waters and catch prey. It is believed to have primarily fed on fish and other small marine organisms.
These fascinating reptiles reached varying sizes, with adults ranging from six to forty feet in length, depending on the species. Plesiosaurus fossils have been found in various parts of the world, including Europe, South America, and Antarctica, indicating a widespread distribution during their existence. The discovery of their fossils contributed significantly to our understanding of prehistoric marine life and the evolution of reptiles.
Today, plesiosaurus is considered an iconic symbol of the Mesozoic Era, often featured in popular culture and depictions of ancient marine life. Its unique physical characteristics and fascinating history continue to captivate the imagination of scientists and enthusiasts alike.
In geol., a genus of fossil marine reptiles having a small head and a neck of enormous length.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "plesiosaurus" is derived from Greek. It combines the word "plesios" (πλησίος), meaning "near" or "close to", and "sauros" (σαύρα), meaning "lizard" or "reptile". Therefore, the name "plesiosaurus" translates to "near-lizard" or "close to a lizard", which refers to its classification as a marine reptile.