This 3D model was mostly done by the end of 2019 but I did some tweaking and repainted it in early 2020. After that it's just been sitting on my HD waiting for me to find the time to post it here.
Very nice! And also very nice example of convergent evolution: similar environmental conditions lead to similar forms and functions.
I have been wondering: could such a giant mosasaur descendant also be based on herbivory, i.e. feeding on sea weed, kelp etc.?
And what would that look like?
Imagine a huge shallow sea with enormous amounts of giant (kelp-like) weeds, and giant marine reptiles feeding on it. Be it giant mosasaur-like or giant turtle-like.
I've seen a couple of images from it, I believe. It's basically what I would have liked us to do with Spec, but we were already too fixed to the holocene fauna created in the beginning. If I ever get Dinosaurs of the Ice Age properly going, my intention is to do a major shakeup by killing off almost all the familiar large-bodied dinosaur clades by the end of the Oligocene.