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The physique form of Sacabambaspis vaguely resembled that of a tadpole with an outsized head, flat physique, wriggling tail, and lack of fins. Sacabambaspis had a head shield made from a large higher (dorsal) plate that rose to a slight ridge within the midline, and a deep curved lower (ventral) plate, this headshield is ornamented with attribute oak-leaf shaped or tear-drop shaped tubercles. Also it had slim branchial plates which link these two along the sides, and canopy the gill space.