Well just today I threw a couple shovels of soil over a bulb just like that. I didn't get it planted deep enough last fall and the winter/spring rains washed away what little soil was on top of it.
If you look where I mentioned before, where the old stem was, you can see old dead roots around it and hanging over the side. Many true lilies grow roots on the stem between the bulb and the top of the soil level. Another clue as to what this plant is. These roots provide most of the feeding. The roots that grow from the bottom of the bulb are mostly for anchoring the plant.
Because the top of this bulb is out of the soil, some slugs or snails may have eaten off the tips of the bulb scales. They do look a bit chewed on.
Also, this looks like it will be either a trumpet lily or what we call an Orienpet lily, a cross between an Oriental lily and a trumpet lily.