There are indications that there might have been a lost epic poem, a "Gigantomachia", which gave an account of the war: Hesiod's "Theogony" says that the Muses sing of the Giants, and the sixth century BC poet Xenophanes mentions the Gigantomachy as a subject to be avoided at table. The Apollonius scholia refers to a ""Gigantomachia"" in which the Titan Cronus (as a horse) sires the centaur Chiron by mating with Philyra (the daughter of two Titans), but the scholiast may be confusing the Titans and Giants. Other possible archaic sources include the lyric poets Alcman (mentioned above) and the sixth-century Ibycus.