Jaekelopterus
Sept. 1, 2024
Jaekelopterus rhenaniae - Carnivora Dr Craig McClain on Twitter: "Jaekelopterus is a genus of predatory eurypterid, or my preferred name, sea scorpions. This group of extinct aquatic arthropods lived during the Devonian (~400MYA). They are also File:20210106 Jaekelopterus rhenaniae.png - Wikimedia Commons Jaekelopterus