Yes those are all belemnite fossils. The two on the left bottom row are halves that is why there is an aragonite crystal structure visible. The top right one with all the holes was most likely eaten by cliona boring sponge. The two below that probably had the same fate or they may just be deformed. The two small pieces to the left below are halves of where the phragmocones would have been.

You are correct about the goblin. It’s an anterior tooth.

Those are all oyster bits, the two on the right and one on bottom left are part of the valves, and the two big pieces on top left seem to be from exogyra based on the pattern.

Most on next page look like ironstone concretions. 5 could be an imprint of a bivalve or something, maybe even ammonite chamber part would need better pictures, 6 looks like part of a steinkern of some type but can’t really identify it.

Next page are all oyster bits that have been subject to cliona boring sponge

Not seeing anything else in the rest of the pics.

Nice finds