[Wait, what's that? Oh, good, it's just the Bat Shot, which he doesn't remember bringing but could definitely use right now. He grabs it out of the air and turns on the flash-- since he doesn't really remember how he got here, he doesn't know why he didn't think to bring a flashlight in the first place.

Oh, that looks like basalt! Maybe this cave is a lava tube, which would mean that it's probably too recent for any dinosaurs to have ever been here. Shoutarou will appreciate that fact. There might still be a Gaia Memory, though. Better be careful.]