[2] Given Roman taste in the Augustan period, the caryatids could have been copied from the graceful female figures familiar to Diogenes at Athens.
[3] In the 7th century, the Pantheon was converted for use as a Christian house of worship, and Diogenes' sculptures have either not survived or not been identified as such.
Nothing is known for certain about his work beyond Pliny's remark, but it may have resembled fragmentary caryatids recovered from the Forum of Augustus and Hadrian's Villa.
[5] Winckelmann conjectured that an atlantid (the male version of a caryatid), formerly at the Palazzo Farnese, was the work of Diogenes.
[6] Diogenes also created sculpture for the Pantheon's pediment, of equally fine quality, but lesser known, Pliny remarks, because the structure's great height made this work difficult to see.