Laopteryx Laopteryx Laopteryx is the name assigned to a pterosaur (flying reptile) from the Upper Jurassic Morrison Formation of Wyoming, United States; it was originally thought to be a bird. The genus was named in 1881 by Othniel Charles Marsh. The generic name is derived from Greek "laas", "stone", and "pteryx", "wing". The full species name given by Marsh was "Laopteryx priscum"; the specific name meaning "of venerable age" in Latin. However, Marsh incorrectly used the neuter form, while "pteryx" is feminine in Greek. (See grammatical gender.) This was in the 19th century emended to an, also incorrect, masculine "priscus" and
Leon (given name) Leon (given name) Leon is a first name of Greek origin-the Greek λέων (léon; leōn), meaning "lion," has spawned the Latin "Leo," French "lion," Irish "Leon" and Spanish "León." Perhaps the oldest attested historical figure to bear this name was Leon of Sparta, a 5th-century BCE king of Sparta, while in Greek mythology Leon was a Giant killed by Heracles. During the Christian era Leon was merged with the Latin cognate Leo, with the result that the two forms are used interchangeably. A similar Greek name to Leon is Leonidas, meaning "son of a lion", with Leonidas I, king of