Why? Did they ask you to send them pictures of dinosaur footprints or something? Leave them be, you're not going to convince them of anything (if they are set

Why? Did they ask you to send them pictures of dinosaur footprints or something? Leave them be, you're not going to convince them of anything (if they are set in their beliefs) any more than they will convince you, no matter how much you'll claim "well I believe them if they show me proof". You wouldn't, as they can just point all around you for proof but you're not accepting it, and neither would they if shown proof of dinosaurs on different continents from millions of years ago. Their beliefs don't affect you, or, only as much as you let them. It really doesn't matter that you're right. What do you think you look like if you send them "proof" without them asking for it?