Gomphothere (IMAGE) Florida Museum of Natural History Caption Gomphotheres were among the most diverse proboscideans and spread to nearly every continent during their 20 million-year reign. Credit Florida Museum illustration by Merald Clark Usage Restrictions Credit must be given to the creator. License CC BY 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.