Xiphiorhynchus

Xiphiorhynchus is an extinct genus of prehistoric swordfish that lived from the Eocene until the Oligocene. Unlike the modern swordfish, both the upper and lower jaws of Xiphiorhynchus were extended into blade-like points.

Distribution
Fossils of Xiphiorhynchus have been found in:


 * Eocene
 * La Meseta Formation, Antarctica
 * London Clay, Selsey and Elmore Formations, England
 * Yazoo Formation, Louisiana
 * Moodys Branch Formation, Mississippi
 * Castle Hayne Formation, North Carolina


 * Oligocene
 * Chandler Bridge Formation, South Carolina