![Compound eyes: The visual apparatus of today's horseshoe crabs goes back 400 million years - The Archaeology News Network Compound eyes: The visual apparatus of today's horseshoe crabs goes back 400 million years - The Archaeology News Network](https://i0.wp.com/1.bp.blogspot.com/-7zUN_tA7qjU/Xef9DoUjj1I/AAAAAAACuGY/sf6E9x7cRMIP-kBhCl7nD6gnGSKlsOtAwCLcBGAsYHQ/s1600/compound-eyes-02.jpg?ssl=1)
Compound eyes: The visual apparatus of today's horseshoe crabs goes back 400 million years - The Archaeology News Network
![Seeskorpion - Jaekelopterus rhenaniae :: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz :: museum-digital:rheinland-pfalz Seeskorpion - Jaekelopterus rhenaniae :: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz :: museum-digital:rheinland-pfalz](https://asset.museum-digital.org/rlp/images200907/83.jpg)
Seeskorpion - Jaekelopterus rhenaniae :: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz :: museum-digital:rheinland-pfalz
![The visual systems of Jaekelopterus rhenaniae, Pterygotus anglicus,... | Download Scientific Diagram The visual systems of Jaekelopterus rhenaniae, Pterygotus anglicus,... | Download Scientific Diagram](https://www.researchgate.net/publication/281099007/figure/fig1/AS:614208584568853@1523450146780/The-visual-systems-of-Jaekelopterus-rhenaniae-Pterygotus-anglicus-Slimonia-acuminata.png)
The visual systems of Jaekelopterus rhenaniae, Pterygotus anglicus,... | Download Scientific Diagram
![Fossil of Mixopterus, a type of sea scorpion (eurypterid) that lived during the Late Silurian (426-414 million years ago). : r/Naturewasmetal Fossil of Mixopterus, a type of sea scorpion (eurypterid) that lived during the Late Silurian (426-414 million years ago). : r/Naturewasmetal](https://i.redd.it/h3v7gj9cxye41.jpg)
Fossil of Mixopterus, a type of sea scorpion (eurypterid) that lived during the Late Silurian (426-414 million years ago). : r/Naturewasmetal
![Eurypterid Sea Scorpion (Jaekelopterus rhenaniae) 390 million years ago | Prehistoric, Prehistoric world, Prehistoric animals Eurypterid Sea Scorpion (Jaekelopterus rhenaniae) 390 million years ago | Prehistoric, Prehistoric world, Prehistoric animals](https://i.pinimg.com/564x/30/30/54/303054503193661ebb7576dc0ad60b45.jpg)