There are some photos of the type specimen having undergone preparation, the tail vanes run all along the tail. Only Pterorhynchus<i/>, Rhamphorhynchus, and Sordes have been preserved so as to show tail vane remains. In Sordes the vane seems to be a long, thin segmented paddle shape.
I think there was only ever one reconstruction of it with a full nasoantorbital fenestra, and I'm pretty sure it was the result of a misinterpretation due to the dorsoventral crushing of the right side of the skull displacing a lachrymal. The naris is still quite visible in the photos and the x-rays.