Crocodile Fossils (IMAGE) American Museum of Natural History Caption Researchers uncovered fossils from seven different species of crocodiles that lived together about 13 million years ago in the Pebas Formation in what is now the Amazon Basin of northeastern Peru. Their skulls and jaws, shown here, are extremely diverse: (1) Gnatusuchus pebasensis, (2) Kuttanacaiman iquitosensis, (3) Caiman wannlangstoni, (4) Purussaurus neivensis, (5) Mourasuchus atopus, (6) Pebas Paleosuchus, and (7) Pebas gavialoid. The three new species (1-3) are shown in illustrations below the respective fossils. Reconstructions by Javier Herbozo. Credit © Rodolfo Salas-Gismondi Usage Restrictions Can be used with appropriate credit 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.