What did I find?

[dinosaur man]

+1 for sand dollar, compare this one to yours there are a lot of similarities. It doesn’t have the same texture as a Turtle shell fragment.

[Bone Daddy]

I see this dynamic with people seeking to get potential meteorites identified. It's why I don't do unsolicited meteorite ID requests any more. People get invested in a certain outcome to their question, and they shoot the messenger when the answer does not validate their preconceived idea.