Pet Super Store

Pet Shop is a store where pets can be bought, Pet Store is a great place where you can buy products for pets ie dog beds, pest control products, pet food for all animals, etc.

It sells pet super.

A pet store is usually handled locally and not part of a national chain. This is what comes to mind.

A pet shop probably sells pets and pet accessories like all their food store pet pets sells great need anything but pets.

supermarket is obviously greater