diamondbp said:The babies are without a doubt River Cooters cocinna....but that adult is a female Yellow Bellied slider scripta scripta. I'm pretty positive. Congrats on the find
I agree. The big female didn't seem to match up with those hatchlings. It's a tricky one, but the body shape (both plastron and carapace), nose, and carapace markings all point to Trachemys.
I would love to see shots of the sides of the head too, not that we need any to determine it isn't a Pseudemys. Maybe just to confirm which Trachemys it is. Have any?