Cotylorhynchus synapsids, illustration. These synapsids lived in swamps 275 million years ago, during the Early Permian period in what is today North America. Synapsids are a group of animals that include mammals and extinct amniotes more closely related to mammals. They weighed up to 1000 kilograms and measured 6 metres in length. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Witton, Mark P. |
Bildgröße: | 7000 px × 5000 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |