User blog comment:Soosieloo/Patterns, Plethora and Protoceratops/@comment-5540159-20130130183244

The Dino Gods have not been forthcoming in their logic or lack thereof. I think your strategy is safest to keep all the ones your want and only fuse 'extra' dinos. We never know when the gods are going to change their mind next. Thanks for the blog Soosie :)