Irenaeus says the same.
The incidents contained in Genesis, from the first to the tenth chapters inclusive (chapters which, in their bearing upon science, are of more importance than other portions of the Pentateuch), have been obviously compiled from short, fragmentary legends of various authorship.

To the critical eye they all, however, present peculiarities which demonstrate that they were written on the banks of the Euphrates, and not in the Desert of Arabia.

They contain many Chaldaisms.

An Egyptian would not speak of the Mediterranean Sea as being west of him, an Assyrian would.
Their scenery and machinery, if such expressions may with propriety be used, are altogether Assyrian, not Egyptian.

They were such records as one might expect to meet with in the cuneiform impressions of the tile libraries of the Mesopotamian kings.