This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Griffin (Heraldic)
The griffin, griffon, or gryphon is a legendary creature with the body, tail, and back legs of a lion, and the head and wings of an eagle with its talons on the front legs. Most statuary representations of griffins depict them with bird-like forelegs and talons, although in some older illustrations griffins have a lion's forelegs; they generally have a lion's hindquarters.
Griffins were considered noble creatures that lived in the time of ancient Greece and other neighboring regions and protected the rich deposits of gold in the mountains of Scythia, today’s northeastern Europe. The belief of the existence of this monstrous creature suggests that the origin of the myth is somewhere in the East, as variations of a similar creature appeared in Persia and Egypt before 3,000 BC.