I found these growing in my yard right next to my driveway. I have no plans on eating them, but would like to know what type they are and if they are poisonous. I do have two dogs who I would like to keep away from these should they be harmful.
Note that I think there are two different types of mushrooms here (the ones with the darker bottoms and the ones with the whiter bottoms), but I don't really know for sure. The darker ones were mixed in with the others somewhat. I didn't see any more of them, but there are a lot of the ones with the lighter bottoms (gills or whatever they are called).