Eh, I'm just a lazy person, but it would be nice to have a "Let them Pass Over" button for the Graveyard. The button would delete the dead creatu, clearing them from existence.
It would work like this. You click the pet, then when it's bio pops up on that white page, you click a little blue link on the button (just above the go back), and your pet passes over. But not before the mandatory "Do you really want to let xxxxxx pass over? Yes -- No"
It's just gets tiring, having to search though dozens of "no named" natties, and other lost souls who I don't care much for. Let them have a happy life on the other side.
EDIT: Includes Yoshi's idea/post. Exactly what I meant (Just that I have a bajillion no-named and I temporarily forgot they would have had names.)