Her hair is covered with a sheer frill trimmed with matching blue ribbon knots. The rear edge of the frill is lightly scalloped. Horner stressed that the frill of ceratopsian skulls consisted of metaplastic bone. The gatekeeper in traditional dress with frill turban attracted immediate attention. The skull, as restored, features a broad, square, neck frill with two oval shaped openings. The sides of the frill are adorned by about nine osteoderms. The breed is known for the "frill" or "curls" on the wing shield feathers. Protoceratopsidae has a frill and rostral bone characteristic of all ceratopsians. The rear, parietal, edge of the frill bears ten or more epiparietals, triangular osteoderms. Due to the elongated frill, especially the skull length is considerable. These were low triangular processes on the frill edge, representing separate skin ossifications or osteoderms. The corner of the frill featured two larger osteoderms on the parietal bone. The parietals however, show no indentation at the midline of the frill rear. "W4052" had the first version of the Youngman Frill airbrake fitted to the fighter prototype. Some, like the type individual, had a third pair of long frill spikes.