Trident of Poseidon

[3][4][5] There is further myth that Poseidon (Neptune) produced a horse by striking the earth with the trident, in order to bolster his claim,[6] but there is no attestation for this among Greek writers.

[9] In a version of another myth Poseidon wields his trident to scare off a satyr who tries to rape Amymone after she mistakenly hits him with a hunting spear.

The oldest coins of Poseidonia from the 6th century BC depict a trident wielded by Poseidon in his right hand, similar to Zeus's thunderbolt.

[12] The view shared by Friedrich Wieseler, E. M. W. Tillyard and several other researchers is that Poseidon's trident is a fish spear, typical for coast-dwelling Greeks.

It is a recurring motif in the US military, being featured on the crest of the United States Navy SEALs and on the badge of USS John S. McCain.