Yes.
Prehistoric - Yes.
But 6 foot shells? Now that must have been a real terror to Carp.
Terror, more like the coming of the apocalypse.
Have two three footers in the nearby creek.
One male, one female.
The female if the most territorial reptile I've ever seen.
Chased everything away from 'her' sunning spot.
Frogs, fish, other turtles, other snppers, dragon flies.
If it came within a few feet, she hissed and lunged.
Not something to meet up with while wading after crawdads.
Saw her chase the male for thirty minutes, knocking him around like he was nothing with her beak.
He'd made the mistake of trying to go upstream through 'her' territory to get to the deeper section where most of the fish were.