Oldest Fossil Showing <i>Plasmodium malaria</i> (IMAGE) Oregon State University Caption This 15- to 20-million-year-old mosquito Culex malariager, was discovered in the Dominican Republic preserved in amber, and is infected with the malarial parasite Plasmodium dominicana. It's the oldest known fossil showing Plasmodium malaria, related to the type that today infects humans. Credit (Photo by George Poinar, Jr., courtesy of Oregon State University) 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.