ДиБгд, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons
A Jaekelopterus.

(ДиБгд, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons)

Jaekelopterus is a type of predatory Eurypterid that reaches lengths of up to two meters. They are apex predators who bury themselves in the ocean sand and muck, springing from their lair when prey swims near. They are one of the only Eurypterids capable of limited terrestrial locomotion.

They are revered by the Empire as its national animal. It was declared by the Emperor that these creatures were the direct and true children of God, therefore the killing of Jaekelopterus would be punished by death. Imagery of these creatures is common in architecture and culture.


They are similar to most Eurypterids in form, albeit far larger. They are quite robust, which likely contributes to their ability to burrow beneath the soil. The chelicerate of the Jaekelopterus are also highly denticulated, which is unusual compared to most other Eurypterids.

Jaekelopterus has a small, vestigial stinger.

Cultural Significance

Jaekelopterus is revered by the Empire, as the Emperor declared them the true children of God aeons ago. As such, their image is ingrained in the Empire’s society. Their image is commonly seen in statues, architecture, and even in writing.

The Imperial Writing System has multiple symbols used to create words which consist of stylized Jaekelopterus in myriad positions. These symbols are highly important to the Imperial Writing System. Also, there are multiple shrines dedicated to these creatures.

It is said that the Emperor travels high above known space watching his subjects on a chariot pulled by these large Eurypterids.