The 400-foot design was discovered in a barley field in Yatesbury near Devizes and depicts the mythical phoenix reborn as it rises from the ashes.
Investigators claim more formations are referencing the possibility of a cataclysmic event occurring on December 21, 2012, which coincides with the end of the ancient Mayan calendar.
The Mayans believed civilisation exists within a series of earth cycles of 144,000 days each with the 13th expiring in December 2012, resulting in Armageddon.
Crop circle enthusiast Karen Alexander, from Gosport, Hants, said: "The phoenix is a mythical creature which symbolises rebirth and a new era in many cultures across the world.
"Within the crop circle community many believe the designs are constantly referring to December 21 and its aftermath.
"This could be interpreted as the human race or earth rising again after a monumental event.
"The patterns are becoming more intricate with every find and it is exciting to think how they are going to evolve by the time we get to 2012." ...