Apulian Red-Figure Calyx Krater Fragment

Composed of three joined fragments, from the middle of a calyx krater. Supplication scene involving a seated male figure with four others.
Above, sandaled feet and drapery of a figure facing left. To right, lower part of a shield (interior view) and a female figure who sits to the right. She wears a chiton and himation, and has a sceptre (Athena?). Below, at left, bearded male sitting with sceptre (Zeus or a king?). He looks towards an anxious-faced youth who holds a berried laurel branch draped with white beads. To right, a bucranion and the head of a second youth wearing a petasos (Hermes?). At the very right edge of the fragment, white arc with small white circles on the outside and petals of a rosette.
Interior, black.