6. The bronze chariot, with a figure of a man in it, which was dedicated at Olympia by Deinomenes, the son of Hieron, in memory of his father's victories. On each side of the chariot were ridinghorses, with figures of boys upon them; these were made by Calanis. (Paus. 6.12.1, 8.42.4. s. 8.) This work is one authority o date of Onatas, since Hieron died B. C. 467.
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