The Marine Iguanodon or Rynchotitan
A (previously thought to be) extinct species of gigantic fossil reptile belonging to the retrosaurian family, somewhat similar to iguanodon creatures previously classified. Its fossils discovered in late Cretaceous formations, this species is hypothesized to have lived throughout the South Pacific Ocean on landmasses such as New Guinea, New Zealand, and French Polynesia. A chance discovery by a submersible of partially uncovered remains within ocean sediment has lead paleontologists to surmise that this particular kind of retrosaur was aquatic.
This was at least partially confirmed in the late 20th century when a colossal and severely mutated individual of this species apparently swam from the southern Pacific, trekked across Panama, swam through the Atlantic and made landfall on Manhattan island. The reason for this bizarre journey is unknown, thought it’s believed to be some exaggerated form of migration instinct amplified and altered by its mutation.
It wasn’t too bad, really. At least, it wasn’t a ~huge~ disaster. It was kind of like having a moose in your driveway, a little scary, but it can be weathered with a bit of patience. Only on a city-sized scale, of course.
