Doing this will save space on our server, yet still allow everyone to easily find what they are looking for. These are not combined .ztd files, they are the single files for each animal, zipped up together. After downloading the zip and opening it, just pick the ones that are wanted, and discard the rest.
I am back on my google drive - I uploaded there ceratopsians as a single .ztd files, and also hwdinosaurdigscretaceous.rar (find it in pack folder) with all my Cretaceous dinosaurs combined into one .ztd.