Trilobite fossil. Fossil of a quadrops trilobite (Flexuosa sp.) showing the animal's many spines. Trilobites are extinct hard-shelled,segmented arthropods that lived in ancient seas. They are considered one of Earth's earliest,complex life-forms and are one of the most well-known creatures of the Palaeozoic Era. Trilobites existed between the Cambrian and Permian periods around 542-250 million years ago,and were mainly bottom-feeding,scavengers | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Stammers, Sinclair |
Bildgröße: | 3448 px × 5150 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |