ough there are no early precedents for it, some sources identify her with images of a sea serpent or dragon.In the Enûma Elish, the Babylonian epic of creation, she gives birth to the first generation of deities; her husband, Apsu, later makes war upon them and is killed. When she, too, wars upon her husband's murderers, she is then slain by Ea's son, the storm-god Marduk. The heavens and the earth are formed from her divided body.
Tiamat was later known as Thalattē (as a variant of thalassa, the Greek word for "sea") in the Hellenistic Babylonian Berossus' first volume of universal history. It is thought that the name of Tiamat was dropped in secondary translations of the original religious texts (written in the East Semitic Akkadian language) because some Akkadian copyists of Enûma Elish substituted the ordinary word for "sea" for Tiamat, since the two names had become essentially the same due to association.