In many Western Asiatic and Near Eastern cultures, frogs were associated with spring, regeneration and fertility, as frogs were considered highly fertile animals. In addition, frogs were widely present in the marshlands of Mesopotamia and on the banks of the Nile, which explains their popularity in Near Eastern and Egyptian iconography. It is relatively rare to have frogs impressed in seals. Usually frogs would have been carved in the round, and deposited as amulets in graves or shrines. Larger stone frogs were used as trade weights.
To discover more about Mesopotamian peoples, please visit our relevant post: Civilisations of the Ancient Near East.