original description
Coquand, H. (1854). Description géologique de la province de Constantine. <em>Mémoires de la Société géologique de France, deuxième série.</em> 5(1): 1-155., available online at https://www.biodiversitylibrary.org/page/42312324
page(s): 145-146, pl. 5, fig. 5 [details]
additional source
Pallary, P. (1901). Sur les mollusques fossiles terrestres, fluviatiles et saumâtres de l'Algérie. <em>Mémoires de la Société Géologique de France.</em> 9 [= <i>Paléontologie</i> 22]: 1-213, pl. 1-4., available online at https://www.biodiversitylibrary.org/page/42341739
page(s): 185-186, pl. 4, fig. 2 [details]
source of synonymy
van Damme D. (1984). The freshwater mollusca of Northern Africa: Distribution, biogeography and paleoecology. <em>Developments in Hydrobiology.</em> 25: 1-163.
page(s): 52 [details] Available for editors
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From editor or global species database
Fossil range Age uncertain, typically given as "Tertiary". Coquand (1854) indicate the age as "étage du calcaire grossier parisien" (Lutetian, middle Eocene), Wenz (1923-1930) classified the deposits in the region as "Pontien" (late Miocene or early Pliocene). [details]