Entwicklung des Isthmus von Panama. (IMAGE) Max Planck Institute for Marine Microbiology Caption Entwicklung des Isthmus von Panama. Der Isthmus trennt den tropischen Ostpazifik vom Karibischen Meer. Er schloss sich vor etwa 2,8 Millionen Jahren. Credit Natalie Renier Usage Restrictions Only to be used in the context of this publication and citing the correct copyright. 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.