Fungus for id please

Fungus for id please

Observation - Fungus for id please. Description: Emerging in rough grass under mixed pine and oak trees, well lit on sandy soil. Concave cap about 8cms across, maybe the same height overall, but the sward is pretty thick. White spores showing in the photos. Any ideas?

Emerging in rough grass under mixed pine and oak trees, well lit on sandy soil. Concave cap about 8cms across, maybe the same height overall, but the sward is pretty thick. White spores showing in the photos. Any ideas?