Dan Ksepka, National Evolutionary Synthesis Center (image) National Evolutionary Synthesis Center (NESCent) Share Print E-Mail Caption Paleontologist Dan Ksepka examines the fossilized skull of what may be the biggest flying bird ever found. Its telltale beak allowed Ksepka to identify the find as a previously unknown species of pelagornithid, an extinct group of giant seabirds known for bony tooth-like spikes that lined their upper and lower jaws. Credit Contributed by Dan Ksepka Usage Restrictions None Share Print E-Mail 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.