Tassiliodus is known from the
holotype specimen
MNHN.F.ALD-15, a complete tooth. Other
syntypes include MNHN.F.ALD-16 (a tooth), scales MNHN.F.ALD-17 to 35 and thin sections MNHN.F.ALD-30-32, 34 and 35. Apart from the syntypes, additional 107 scales are known, all of which were collected in the type locality.
Tassiliodus specimens were collected near In Guezzam, from the Oued Felaou or Anou Izileg of southern Algeria, which dates to the
Emsian stage of the late
Early Devonian. ==Etymology==