Compare the pictorial approach to the narrative equivalent below (salient features in color):
Cephalon: cranidium subquadrate, glabella cylindrical, slightly contracted at S3, 3 pairs of glabellar furrows, preglabellar field short or absent, eye ridge wide, long, directed slightly posterolaterally, palpebral lobe cresentic, posterior area of fixigena with fulcrum, librigena with long genal spine.
Thorax: divided into prothorax of 3 or 6 segments (last prothoracic segment macropleural) and long opisthothorax of up to 95 segments (Balcoracania holds the record for greatest number of thoracic segments in a trilobite species).
Pygidium:.a minute, segmented disc.
There are three genera in the Emuelloidea:
Emuella (left) and Balcoracania (center), and Megapharanaspis (right)