Gena approximately one-sixth of eye height. Surstylus with blades of bifurcated, both blades thin and short, the upper blade a little longer than the lower one. (Xi & Yang 2015)
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith