Aetheri
W/E happens don't panic...
Gators are not the only Archosaurs though...I'm just goofing around with the very earliest split between mammals and reptiles for the sake of hilarity ensuing. Lizards and snakes are technically past the mark, even if gators are the only archosaurs to match up with dinos and birbs.
Then you have turtles that just don't really fit any of that. So they sit in the corner.
Well I mean
Bowser IS dumb, it's just in the same sense that most villains are. Villainy doesn't really pay that well in his case, he could do better things with his life than constantly try political takeovers. His method of dating Peach could go a bit better, too.
I see potential in Bowser to be a good person, even if he tries to carry his villain card on a billboard. He's self centered, but he cares too much about his family and Peach to be an outright sociopath like half the villains running around. The main issue is that he's been raised from childhood to be evil. Something like that is extremely hard to work past.
You have Crocodiles, Caimans, and Gharials too