Which structure on the *Xenoceratops* frill points both backward and outward (laterally)?

Answer

The single, long, flattened spike

Adjacent to the central knobs on the frill sits a single, long, flattened spike that points both backward and outward (laterally).

Which structure on the *Xenoceratops* frill points both backward and outward (laterally)?
paleontologyFeaturedinosaurXenoceratops