Ocaplatyposaurus (SciiFii)

The great sea platypus (Ocaplatyposaurus anatorhynchus) is a species of mostly-aquatic non-avian spinosaurid theropod dinosaur, despite its name, that originally did not exist, but has since been created by SciiFii and introduced throughout the world's oceans to help boost biodiversity. The great sea platypus is among the largest theropods in existence, growing to be about the same size as the trunko (Elephaspinus marinus), which is also a spinosaurid. The great sea platypus is a carnivore that primarily feeds on fish and invertebrates on the seafloor, using its sensitive duck-like snout, pitted with electroreceptors, to detect its prey below the mud and sand, similarly to the platypus. The great sea platypus is one of the most specialized of the marine spinosaurs, having an advanced ichthyosaur-like body with flippers for steering and a large fin for paddling through the water. However, despite its features, the females are not fully aquatic, unlike the males, which have vestigial hind flippers, the females still have large, developed hind limbs for crawling onto land to lay eggs, similar to the sea turtles. The great sea platypus can lay about as much eggs as 50 at a time. The conservation status of the great sea platypus is Least Concern due to successful conservation efforts and the great sea platypus' wide range.