The Taotie (Chinese: 饕餮; pinyin: tāotiè; sometimes translated as a gluttonous ogre mask) is a motif commonly found on Chinese ritual bronze vessels from the Shang and Zhou dynasty. The design typically consists of a zoomorphic mask, described as being frontal, bilaterally symmetrical, with a pair of raised eyes and typically no lower jaw area. Some argue that the design can be traced back to jade pieces found in Neolithic sites such as the Liangzhu culture (3310–2250 BCE).
Scholars have long been perplexed over the meaning (if any) of this theriomorphic design, and there is still no commonly held single answer. The hypotheses range from Robert Bagley's belief that the design is a result of the casting process, and rather than having an iconographic meaning was the artistic expression of the artists who held the technological know-how to cast bronze, to theories that it depicts ancient face masks that may have once been worn by either shamans or the god-kings who were the link between humankind and their deceased ancestors (Jordan Paper).
The once-popular belief that the faces depicted the animals used in the sacrificial ceremonies has now more or less been rejected. (Although some faces appear to be oxen, tigers, dragons, etc. some argue[who?] that the faces are not meant to depict actual animals, feline or bovine.) Most scholars favor an interpretation that supports the idea that the faces have meaning in a religious or ceremonial context, as the objects they appear on are almost always associated with such events or roles. As one scholar writes "art styles always carry some social references." It is interesting that even Shang divination inscriptions shed no light on the meaning of the taotie.
It is not known what word the Shang and Zhou used to call the design on their bronze vessels; as Sarah Allan notes, there is no particular reason to assume that the term taotie was known during the Shang. In fact, the first known occurrence of this word is in Zuo Zhuan, where it is used to refer to one of the four evil creatures of the world Chinese: 四凶; pinyin: sì xiōng: a greedy and gluttonous son of the Jinyun clan, who lived during the time of the legendary Yellow Emperor. The word taotie itself was glossed by a Zuo Zhuan commentator as "glutton".
Nonetheless, the association of the term taotie with the motif on the Zhou (and Shang) bronzes is sufficiently ancient. It comes from the following passage in the Lu’s Spring and Autumn Annals (16/3a, "Prophecy"):
The taotie on Zhou bronzes [ding] has a head but no body. When it eats people, it does not swallow them, but harms them.— 
(In another translation, given in Allan 1991, p. 145, the second sentence is translated as follows: "It devoured a man, but before it could swallow it, its own body was damaged".) In Sarah Allan's view, association between gluttony (the meaning in Zuo Zhuan) and the dings' use for food sacrifices to the "insatiable" spirits of the dead is significant.
Li Zehou comments on the description of the taotie in the Spring and Autumn Annals as follows:
It is hard to explain what is implied in this, as so many myths concerning the taotie have been lost, but the indication that it eats people accords fully with its cruel, fearful countenance. To alien clans and tribes, it symbolized fear and force; to its own clan or tribe, it was a symbol of protection. This religious concept, this dual nature, was crystallized in its strange, hideous features. What appears so savage today had a historical, rational quality in its time. It is for precisely this reason that the savage old myths and legends, the tales of barbarism, and the crude, fierce, and terrifying works of art of ancient clans possessed a remarkable aesthetic appeal. As it was with Homer’s epic poems and African masks, so it was with the taotie, in whose hideous features was concentrated a deep-seated historic force. It is because of this irresistible historic force that the mystery and terror of the taotie became the beautiful—the exalted.— 
During the Ming dynasty, a number of scholars compiled lists of traditional motifs seen in architecture and applied art, which eventually became codified as the Nine Children of the Dragon (龍生九子). In the earliest known list of this type (in which the creatures are not yet called "children of the dragon", and there are 14 of them, rather than 9), given by Lu Rong (1436–1494) in his Miscellaneous records from the bean garden (菽园杂记, Shuyuan Zaji), the taotie appears with a rather unlikely description, as a creature that likes water and depicted on bridges. However, a well-known later list of the Nine Children of the Dragon given by Yang Shen (1488–1559) accords with both the ancient and the modern usage of the term:
Some scholars believed that the Taotie motif is a reference to Chi You and is used to serve as a warning to people who covet power and wealth. According to notes by the Qing dynasty painter Luo Ping/Luo Pin:
Huang Di ordered his men to have Chi You beheaded... seeing that Chi You's head was separated from his body, later sages had his image engraved on sacrificial vessels as a warning to those that would covet power and wealth.— 
- Greg Woolf (2007). Ancient civilizations: the illustrated guide to belief, mythology, and art. Barnes & Noble. p. 216. ISBN 978-1-4351-0121-0.
- Kesner, Ladislav (1991). The Taotie Reconsidered: Meaning and Functions of the Shang Theriomorphic Imagery. 51, No. 1/2. Artibus Asiae. pp. 29–53.
- Allan 1991, p. 128; Quote: "To some, the problem of meaning has seemed impenetrable"
- Bagley, Robert (1987). Shang Ritual Bronzes. The Arthur M. Sackler Foundation. ISBN 978-0-674-80525-5.
- Keightley, David (1978). Sources of Shang History: The Oracle-Bone Inscriptions of Bronze Age China'. University of California Press. p. 137. ISBN 0-520-02969-0.
- Allan 1991, p. 145,148
- Li 1994. The primary source: Lu’s Spring and Autumn Annals, chapter 先識 ("Prophecy"), quote: "周鼎著饕餮，有首無身，食人未咽，害及其身，以言報更也。"
- Lu Rong's Shuyuan Zaji is quoted in Yang Jingrong and Liu Zhixiong (2008): "饕餮性好水，故立桥所。". The full text of Shuyuan Zaji can be found at a number of sites online, e.g. here: 菽園雜記
- Yang Shen's Sheng'an Ji (升庵集) quoted in Yang Jingrong and Liu Zhixiong (2008): "饕餮好饮食，故立于鼎盖。"
- Wangheng Chen; Various (2001). Chinese Brozes: Ferocious Beauty. Asiapac Books Pte Ltd. pp. 62–63. ISBN 9789812290205.
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- Allan, Sarah (1991), The shape of the turtle: myth, art, and cosmos in early China, SUNY series in Chinese philosophy and culture, SUNY Press, ISBN 0-7914-0460-9
- K. C. Chang, Art, Myth, and Ritual: The Path to Political Authority in Ancient China. Cambridge, Mass.: Harvard University Press, 1983.
- Mircea Eliade, Shamanism, trans. W. R. Trask. NY: Bollingen Foundation, 1964.
- Li, Zehou (1994) , The Path of Beauty: A Study of Chinese Aesthetics, Oxford in Asia paperbacks, New York: Oxford University Press, pp. 30–31, ISBN 0-19-586526-X, translated by Gong Lizeng. There is an excerpt on taotie at AsianArt Study Guide.
- Jordan Paper, "The Meaning of the 'T'ao-T'ieh'" in History of Religions, Vol. 18, No. 1 (August, 1978), pp. 18–41.
- Roderick Whitfield, ed. The Problem of Meaning in Chinese Ritual Bronzes. London: School of Oriental and African Studies, 1993.
- 杨静荣 (Yang Jirong); 刘志雄 (Liu Zhixiong) (2008), 龙之源 (The Origin of the Dragon), 中国书店, Chapter 9, 龙的繁衍与附会——龙生九子 (Dragon's derived and associated creatures: The nine children of the dragon), ISBN 7-80663-551-3 (Section 1, Section 2, Section 3).