†Spirigera protea alata Abich 1878 (lamp shell)
Rhynchonellata - Athyridida - Athyrididae
Full reference: H. Abich. 1878. Geologische Forschungen in den Kaukasischen Ländern. I Theil. Eine Bergkalkfauna aus der Araxesenge bei Djoulfa in Armenien 1-126
Belongs to Spirigera protea according to H. Abich 1878
Sister taxa: Spirigera protea multilobata, Spirigera protea quadrilobata
Ecology: stationary low-level epifaunal suspension feeder
Distribution: found only at Araxes Gorge (Permian of Azerbaijan)