18-Scorpii-4 Fauna: Aquatic Octopod

Among the rather ancient octopods is a group of impressively large aquatic predators (based on the limited number of observed species) that share common traits with certain Earth archosaurian reptiles, especially in terms of behavior.
These animals have been grouped into a single group, nicknamed "CEU" or "Crocodilian-Eurypterid", in reference to their anatomy, which is similar to that of lizards, but also to giant aquatic arthropods that also used their forelimbs for swimming.
These "crocodiles" are quite similar to their terrestrial counterparts, except that they have four pairs of limbs, two pairs of which are modified into fins. It has been observed that the species have almost the same body anatomy and differ only in the shape of their jaws and the first pair of limbs, which appear to have evolved to grasp or hold their prey. In fact, our naturalist plans to classify them into different families based on the shape of their forelimbs.
The species described here is the first to have been observed, and its size is what makes it exceptional! Estimated at 9 meters in length, this "crocodile" hunted herbivorous animals that came to drink at a body of water.