*In Aeschylus’ Agamemmon the statement is made that the thalamites sit below the zygites.
*Polybius describing a collision during the battle if Chios in 201 B.C. states that one ship penetrated the middle of the hull of the other under the thranites thole (fulcrum pin).
*Polyaenus notes that in a storm additional thranite oars were put out to aid in steering indicating that the thranites sat in the rear of the ship. Some historians believe that the Thranites were in the aft position, the zygites in the center, and the thalamites in the bow. This suggests a bow to stern division of rowers as opposed to a vertical division which doesn’t make sense given the need to layer the rowers and equip them with different length oars.
*A trireme oar inventory has been uncovered which lists 62 thranite oars, 54 zygite oars, and 54 thalamite oars.