Is the frontalis muscle a separate muscle to temporalis in mammals (non-human)?

If so, which one is more superficial (say in the dog) and what are their different functions %26 innervations?
Answer:
Yes, it is a separate muscle, even in humans (or should I say especially in humans?). Frontalis is more superficial. It is used partly for raising your eyebrow (to express surprise, questioning, etc). It is supplied by the facial nerve (7th cranial nerve). Temporalis muscle is a much bulkier muscle located over the temples. It helps in mastication (chewing) and is supplied the by trigeminal nerve (5th cranial nerve).

Edit:
Sorry, I read your 'non-human' tag after having answered the questions. I'm not sure about non-humans.

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