Ostrich Relative (IMAGE) Virginia Tech Caption This is a Lithornithid skull from the Calciavis grandei fossil, found in Green River Formation of Wyoming. Credit Sterling Nesbitt/Virginia Tech Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.