Xiphactinus News

Latest Articles

• Cretaceous Cold Case Solved: Giant Fish Tooth Found Lodged in Ancient Plesiosaur Neck at Chicago Museum

  Published: Apr 28, 2026

  Section: Environment

  Paleontologists at Chicago's Field Museum have identified a 1.74-inch tooth fragment embedded in the neck of a 13-foot Polycotylus plesiosaur, revealing a violent encounter with a...

• High Tech CT Scans Reveal Fatal Cretaceous Clash Between Giant Predatory Fish and Marine Reptile in Ancient Alabama

  Published: Mar 14, 2026

  Section: Research

  A collaborative research effort led by the University of Tennessee has uncovered evidence of a prehistoric struggle between a four meter long Polycotylus and a massive Xiphactinus...