Ichthyosaurus lived during the late Triassic and early Jurassic periods. They had strong jaws and mainly ate fish and other smaller marine animals, in the game, it is a dark blue color, with a very long nose/mouth. They are fast and can outswim any other marine reptile. They are probably going to get a remodel soon due to there blockyness and lack of animation. Ichthyosaurus has a growth rate of 0.7, meaning that it takes 42 minutes to elder. Not many people play as Icthyosaurus, it is not that strong and can be killed by a Mosasaurus or pliosaurus in few hits.
Therefore, the Ichthyosaurus is not much of a fighter, but due to its excellent speed, it can survive for a very long time and can scavenge off of stronger marine reptiles.