New Pokemon Sun/Moon trailer has an unannounced Pokemon in it

Pokemon Sun and Moon may have already revealed their starters and legendaries, but a brand new third trailer from CoroCoro gave a brief glimpse of an unannounced Pokemon that looks pretty similar to a dog. One fan on Twitter, mattcavalcanti, tipped off Kotaku on the Pokemon's presence and a translator from Serebii.net spotted it as well.

Here is the screenshot:

If I had to guess, this Pokemon is likely the early game Normal type that every generation has had to this point, following in the steps of Rattata, Sentret, Zigzagoon, Bidoof, Patrat, Lillipup and Bunnelby.

Sources: [Twitter, YouTube, Kotaku]