His date is not quite certain, but 4th century
Alexander Hugh McDonald and Kenneth S. Sacks
Wrote several books about the contemporary near east, including coverage of Pompey's settlement in 63–62. His Περὶ χρυσοφόρου γῆς (‘On the Gold-Producing Land’) does not necessarily identify him with *Teucer(4) of Babylon.
Alexander Hugh McDonald and Antony Spawforth
Chaeremon of *Alexandria (1), where he held a priesthood: Greek writer on Egypt. He taught the young *Nero. His writings treated Egyptian history, religion, customs, astrology, and hieroglyphic writings. A Stoic viewpoint is visible.