This chart shows the Jurassic Period and its stages. The Jurassic Limestone was deposited in the last stage of the Jurassic Period. To be more precise most of this limestone was deposited in the Tithonian Stage of the Jurassic.
This image shows the stratigraphic section and where the Solnhofen Limestone is in relation to the rest of the stratigraphy of that area (modified from Barthel et. al., 1990).