Tridentiferous

[…]where the tridented Rhadamanthus—(Yama with Brahams, also tridentiferous?) with his three-headed dog Cerberus […] receives them into those unsunned dominions.

Source: wiktionary

Somebody calls Senator [Benjamin] Tillman a “tridentiferous statesman.” This is a reminder of the story that when some person described a crab to Cuvier as a red fish that walks backward, he answered, “a crab is not a fish, it is not red and it does not walk backward. With these three exceptions, your definition is perfect.” A pitchfork is not tridentiferous and Mr. Tillman is not a statesman. With these exceptions, the description fits him exactly. [Tillman was known as “Pitchfork Ben”.]

Source: wiktionary

And my sea-birds made a great confusion in the awful calm, filling it with flashing pinions and plaintive whimperings, and settling into the shape of a dome all formed of beating wings, in which I on my ship and the tridentiferous god of the sea were enclosed, face to face.

Source: wiktionary