I think they are Crepidotus, too, based on how the gills all radiate out from the central point where the mushroom attached to the wood. They will have brown spores, unlike the Oysters or Angel Wings. It's hard to say what species these are without seeing the tops or other details. They typically grow on wood that has decayed more than Oysters and Angel Wings, especially where the branch or log has lost its bark. That's a pretty view of your Crepidotus!