I've got a bad feeling I might sleep in tomorrow a.m., so I'll post this now from the ANA:

A Roman-era marble bust of Greek philosopher Aristotle (384 BC - 322 BC), was unearthed during recent archaeological excavations at the foot of the Acropolis in Athens. The 46-centimetre (18-inch) bust, an excellently preserved likeness of the 4th century philosopher, was unearthed together with the busts of Roman emperor Hadrian (31 centimetres) and of a priest, possibly, of the Theatre of Dionysus (34 centimetres).

Aristotle's bust is considered to be the best of all existing ancient ones.

... hopefully I'll come across something with a bit more detail.

From ArtInfo comes an AFP piece(hat tip to DK):

A Roman-era bust of the ancient Greek philosopher Aristotle found beneath the Acropolis in Athens has confirmed some contemporary reports attesting to his hooked nose, a senior archaeologist told AFP today.

The 46-centimeter marble bust of the famous philosopher who lived over 2,300 years ago and taught Alexander the Great is "the best-preserved likeness ever found", archaeologist Alkestis Horemi said.

"This is the only bust portraying the philosopher with a hooked nose in line with ancient descriptions," said Horemi, who supervises archaeological and conservation work at the Acropolis site.

Out of 19 other known Roman-era busts of Aristotle in existence, some show the philosopher's nose as straight or upturned, Horemi said, adding that these works are copies of earlier Greek originals.

Dating from the late first century A.D., the latest bust was found during excavation work that preceded the construction of Greece's new Acropolis Museum, situated near the south of the ancient citadel.

A representation of a bearded, resolute-faced man in his sixties, the bust had probably adorned a Roman villa, Horemi said.

The excavation work for the new Acropolis Museum also unearthed two more Roman-era marble busts, one probably representing a priest and another depicting the Roman Emperor Hadrian, who reigned from 117 to 138 A.D. and was an avid admirer of Classical Greece.

UPDATE: best photo of the Aristotle bust seems to accompany the Times article ...