
It’s not any kind of animal, living, extinct, or imaginary; it’s a triskele. (It’s also the populace badge for the Kingdom of Trimaris in the Society for Creative Anachronism, which is, indirectly, how I came to be aware that some idiot AI somewhere thinks it’s a brontosaurus. Grace was doing something online a while back with SCAdian heraldry images and getting very frustrated that an AI thing kept trying to force extremely incorrect tags on everything… When she shouted, “It’s not a [expletive deleted] brontosaurus!” of course I had to find out what had caused the outburst.)
According to that same AI, this is a pig with knife:

So… not as wrong as the first one, but still wrong. (This is the populace badge for another SCA group.) Those are teeth — y’know, the knives that some animals have naturally in their mouths.
And this is a purple dinosaur:

Nope. It’s a wingless dragon dormant purpure. (*shakes head* I know way too much about heraldry terms for someone who mostly doesn’t have any use for such knowledge except to notice when someone’s unicorn is facing the wrong direction.)
And this one, according to that AI, is neuroscience:

It’s a ram’s head. Sure, real rams don’t go around with their faces painted blue and white as if they were hugs fans of some sports team with those colors, but blue-and-white doesn’t suggest brains and stuff, either, does it?