オリュンポス十二神
Titanis is an extinct genus of giant flightless terror birds that inhabited North America during the early Pliocene to early Pleistocene epochs. The generic name, "Titanis", refers to the titans, Ancient Greek gods that preceded the Twelve Olympians, in allusion to the bird's size. The specific name, "T. walleri", honors the holotype's collector, Benjamin I. Waller, an avocational underwater archaeologist. "Titanis" was thought to be carnivorous and most likely preyed on the many small mammals of the time period. This giant flightless bird was one of the most efficient predators of its time in North America.