†Spirigera protea quadrilobata 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
See also Arthaber 1900, Garbelli and Angiolini 2014, Ghaderi et al. 2015, Grunt 1965, Grunt 1986, Viaretti et al. 2021 and Yousefirad et al. 2013
Sister taxa: Spirigera protea alata, Spirigera protea multilobata
Ecology: stationary low-level epifaunal suspension feeder
Distribution: found only at Araxes Gorge (Permian of Azerbaijan)