↑ The Nahuatl nouns compounded into the proper name "Quetzalcoatl" are: quetzalli, signifying principally "plumage", but also used to refer to the bird—resplendent quetzal—renowned for its colourful feathers, and cohuātl "snake". Some scholars have interpreted the name as having also a metaphorical meaning of "precious twin", since the word for plumage was also used metaphorically about precious things and cohuātl has an additional meaning of "twin".
↑ “Teotihuacan: Introduction”. Project Temple of Quetzalcoatl, Instituto Nacional de Antropología e Historia, Mexico/ ASU. 20 tháng 8 năm 2001. Truy cập ngày 17 tháng 5 năm 2009.
