Based on some very quick research, and concluding that this is an anole egg. We have both Green Anoles (Anolis carolinensis) and Brown Anoles (A. sagrei) in our gardens, and I cannot distinguish which species' egg this is. This is the second time in as many weeks as I have found what appears to be an egg while weeding in our gardens. This one was found in a different area of the bed from the two that I found recently. As before, it was found near or on the top of the soil under a leafy plant and was disturbed when I was clearing the soil out.
Anolis is a genus of lizards belonging to the family Dactyloidae. With nearly 400 species, Anolis represents the world's most species-rich amniote genus. Several species of Anolis are occasionally ascribed to the genus Norops, but the validity of the Norops genus is not widely accepted. The green anole (Anolis carolinensis) has recently become the first reptile to have its complete genome sequenced.