a.1.Pertaining to the ancient Rhæti, or Rhætians, or to Rhætia, their country; as, the Rhetian Alps, now the country of Tyrol and the Grisons.
References in periodicals archive ?
Pietro ai Monti Fm (Ladinian) are unconformably covered by thin discontinuous deposits made of conglomerates, blackish marlycarbonaceous schists and black sandy marls (Rhetian?).
2002; Catalano, 2009, and references therein), clastic deposits resting over Rhetian (?) red-beds in the Longi-Taormina unit gradually pass upwards to neritic black limestones (Hettangian-Sinemurian).