vosgian

from The Century Dictionary.

• Of or pertaining to the Vosges Mountains.
• noun In geology, the Bunter sandstone of the Triassic system as developed in the Vosges Mountains, consisting of a lower division of unfossiliferous red sandstone, the Grès des Vosges, and an upper red sandstone, the Grès bigarré, with Myophoria and reptilian remains.