Aztecs did worship Quetzalcoatl, but the God originates earlier on Yucatan ( Maya, et al.)
Notice a feathered serpent is sort of like a dragon.
CB
http://en.wikipedia.org/wiki/Quetzalcoatl
Quetzalcoatl (pronounced [ketsalˈkoːaːtɬ] in Nahuatl) is an Aztec sky and creator god. The name is a combination of quetzal, a brightly colored Mesoamerican bird, and coatl, meaning serpent. Quetzalcoatl is often referred to as The Feathered Serpent and was connected to the planet Venus. Today Quetzalcoatl is the most well-known Aztec deity, and is often thought to have been the principal Aztec god. However, Quetzalcoatl was just one god in a pantheon of gods, not considered superior to the others.[1]
The god Quetzalcoatl was sometimes conflated with Topiltzin Ce Acatl Quetzalcoatl, a semi-legendary 10th century Toltec ruler.
Contents [hide] 1 Antecedents and origins 2 Religion and ritual 3 Attributes 4 Moctezuma controversy 5 Modern Religious Views 6 Notes 7 References 8 See also
[edit] Antecedents and origins The Feathered Serpent deity was important in art and religion in most of Mesoamerica for close to 2,000 years, from the Pre-Classic era until the Spanish conquest. Civilizations worshiping the Feathered Serpent included the Mixtec, Toltec, Aztec, who adopted it from the people of Teotihuacan, and the Maya.
The cult of the serpent in Mesoamerica is very old; there are representations of snakes with bird-like characteristics as old as the Olmec preclassic (1150-500 BC). The snake represents the earth and vegetation, but it was in Teotihuacan (around 150 BC) where the snake got the precious feathers of the quetzal, as seen in the Murals of the city. The most elaborate representations come from the old Quetzalcoatl Temple around 200 BC, which shows a rattlesnake with the long green feathers of the quetzal.