I have been looking through the Notitia and I've noticed - The Cheetah, the Lioness/Lion, and the Jackal all make common appearances in the ERE army's shield designs. It makes me wonder - were these imperial symbols?
Known shield designs - BTW when I say head it includes thier front legs and chest
Hiberii (Cheetah)
Visi (two Lion or Jackal heads)
Prima Theodosiani (Jackal)
Thraces (Lion)
Tervingi (Two Lion Heads)
Secunda Theodosiani (Possibly a Lion or Jackal)
Sagittarii Seniores Oriantales (Two Jackal or Cheetah Heads)
Menapii (Jackal)
Tertiodecimanii (Jackal)
Valentinianenses (2 Jackal Heads)
Pelantes Iuniores (Jackal)
And there is a shield design in the WRE with a cheetah belonging to the Legiones Prima Flavia
Your Interpretations?
http://www.ne.jp/asahi/luke/ueda-sar...aPatterns.html