2. Of TYRE, likewise a Stoic philosopher, but unquestionably of a later date than the former, though Vossius (de Hist. Gr. p. 392, ed. Westermann) confounds the two. He lived after, or was at least younger than, Panaetius, and Cicero (de Off. 2.24), in speaking of him, says, that he died lately at Athens, which must mean shortly before B. C. 45. From this passage we must infer that Antipater wrote a work on Duties (de Officiis,) and Diogenes Laertius (7.139, 140, 142, 148) refers to a work of Antipater on the Universe (περὶ κόσμου), of which he quotes the eighth book.
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890