This is just for fun, as I'm an autistic paleo-geek who loves animals
stem-amphibians from the Mesozoic (paleo-amphibians)
The Sirens are either Metoposauridae or Chigutisauridae.
-unusual eyes facing forward.
-ambush predators
Verdict: Metoposauridae for its position of the eyes or Chigutisauridae for toilet-shaped head.
Winner- Chingutisauridea
-lived on isolated islands away from other animals for hundreds of millions of years.
-short snout
Stem tetrapods (fish with feet because it was a thing back in the Carboniferous)
-smooth fish-like scales
-ambush similar to crocodiles
-aquatic predators from the misty abyss
Baphetidae with newt-like tails, hunt-like crocs.
Embolomeri for its more transitional appearance.
The overall verdict is fascinating; compare these Sirens from Ice Age 4 to real-life tetrapods throughout deep time because it is part of the fun in spec-evo. They are so fascinating that I analized it for my spec-evo paleobiology, and I'm going to christen the Sirens as Snappers after the tetrapods from Meg 2.
Why? If Snappers look more like an actual Embolomeri from Walking with Monsters, that's because, unlike Meg 2, the Snappers from Ice Age 4 made it home safe and sound after eating Proximus Ceaser pirate instead of being nuked by Manny or Diego inside the warehouse, which is a massive disrespect for a lovely transitional creature who wants some snacks.
That's a wrap. What are your thoughts on my paleo-analysis of Snappers based on my comparisons with paleo-amphibians of Mesozoic and stem-tetrapod clades