Genus Adolfia Gürich, 1909

Type species: Spirifer deflexa Roemer, 1843 .

Stratigraphic distribution: upper Pragian to Frasnian (middle Lower to lower Upper Devonian). Geographic distribution: Europe, North America, southern China.

MIN 0001637

Adolfia deflexa (Roemer, 1843)

Locality: Bad Grund, Harz Mountains, Germany Stratigraphy: Frasnian, lower Upper Devonian