Arrived in heaven, Pegasus served Zeus, fetching for him his thunder and lightning (Hesiod, Theog.
The most frequent representations of Bellerophon in ancient art are (I) slaying the Chimaera, (2) departing from Argos with the letter, (3) leading Pegasus to drink.
From his connexion with Hippocrene Pegasus has come to be regarded as the horse of the Muses and hence as a symbol of poetry.
His ambitious attempt to ascend to the heavens on Pegasus brought upon him the wrath of the gods.
When Mt Helicon, enchanted by the song of the Muses, began to rise to heaven, Pegasus stopped its ascent by stamping on the ground (Antoninus Liberalis 9), and where he struck the earth Hippocrene (horsespring), the fountain of the Muses, gushed forth (Pausanias ii.
The subjects are, between two panthers, a central group of a gigantic Medusa with her two diminutive children, Pegasus and Chrysaor, and corner groups of apparently unconnected battle scenes.