More Aquatic hybrids

I was just looking at the Cenozoic hybrids and I was annoyed because o& the fact that there is less aquatic hybrids than cenozoic even though aquatic hybrids came first. So can you guys add one more, preferably a caves hybrid. It can be called Gillichorhynchops, a Gillicus and Dolichorhynchops mix. Make it like Gillicus with a slightly longer face, and a horn like that of the Dolichorhynchops. Give it a more slender body and only four fins, as well as longer semi finned tail. Make the max evolution very purplish pink and blue like both its progenitors, and give its max evolution a dorsal sail and webbing that connects both fins on either side. Thank you.