Poseidon
Poseidon is the god of the sea. He is also known as Neptune (Roman) and the
     Earth-shaker. His attributes in iconography include the trident, the fish, and the horse.  Epithets- "Hippios"- of the horse.
1. Poseidon and Amphitrite: Detail from Sophilos- Wedding of Peleus and Thetis, ca 580 BC.

2. Nike pours an offering to Poseidon: Aegisthus Painter, ca 475-470 BC.

3. Poseidon, Apollo , and Artemis: Athens, Parthenon frieze from the East side Acropolis, Athens 442-438 BC.

4. Poseidon and Athena: Athens, Parthenon, west pediment, 437-432 BC.

5. The wedding of Poseidon and Amphitrite: Rome Altar of Domitius Ahenobarbus, ca 100 BC.

6. Temple of Poseidon and the Basilica: ca 450 BC and 550 BC.

7. Neptune (Poseidon): Mosaic from Tunisia, 3rd cent. AD.

Modern Representations in Art

1. Triumph of Poseidon and Amphitrite: Constantinolpe, mosaic, 3rd century AD.

2. Neptune and Triton: Berini, Gian Lorenzo, ca 1620-1621.

3. Neptune calming the tempest: Reubens, Peter Paul, 1635.

4. Neptune and Amphitrite: Poussin, Nicolas, 1637.